Method and system for performing high-speed information reading based on fluorescence defects in solid material

Abstract

The invention provides a method and a system for performing high-speed information reading based on fluorescence defects in a solid material, which can be applied to the technical field of optical information storage. The method comprises the steps that a reading parameter set is determined, the reading parameter set is used for conducting parallel information reading on N to-be-read point locations included in the solid material, the to-be-read point locations have fluorescent defects, and different fluorescent defects correspond to different to-be-read information; on the basis of the read-out parameter set, respective fluorescence defects of the N to-be-read point locations are excited, respective photon numbers of the N to-be-read point locations are read, at least one piece of fluorescence data is obtained, the fluorescence data comprise photon numbers corresponding to M to-be-read point locations, the photon numbers correspond to the fluorescence defects of the to-be-read point locations, M and N are positive integers, and M is smaller than or equal to N; and obtaining to-be-read information stored in the N to-be-read point locations on the basis of the at least one piece of fluorescence data and a preset mapping relation.

Description

Technical Field

[0001] The present disclosure relates to the field of optical information storage technology, and in particular to a method and system for high-speed information readout based on fluorescent defects in solid materials. Background Art

[0002] As an excellent information storage system, the solid material femtosecond processing fluorescent defect information storage system is a candidate for the next generation of storage media. High storage density is a major feature of this system, but if you want to show the advantages of this system, you need to have a matching readout speed to achieve high-throughput information transmission. However, the readout rate of the information stored in this system in the related technology is still at a low level, far from meeting practical requirements. Summary of the invention

[0003] In view of the above problems, the present disclosure provides a method and system for high-speed information readout based on fluorescent defects in solid materials.

[0004] According to one aspect of the present disclosure, a method for high-speed information readout based on fluorescent defects in solid materials is provided, characterized in that the method comprises:

[0005] Determine a readout parameter group, wherein the readout parameter group is used to perform parallel information reading on N to-be-read points included in the solid material, and the to-be-read points have fluorescent defects; based on the readout parameter group, stimulate the fluorescent defects of each of the N to-be-read points, and read the number of photons of each of the N to-be-read points to obtain at least one fluorescent data, wherein the fluorescent data includes the number of photons corresponding to each of the M to-be-read points, the number of photons corresponds to the fluorescent defects of the to-be-read points, M and N are positive integers, and M is less than or equal to N; based on at least one fluorescent data and a preset mapping relationship, obtain the to-be-read information stored in each of the N to-be-read points.

[0006] Another aspect of the present disclosure provides a system for high-speed information readout based on fluorescent defects in solid materials, characterized in that the system comprises:

[0007] A fluorescence defect excitation module is used to emit a light signal and transmit the light signal to a solid material through a lens group to excite N to-be-read points in the solid material, wherein the to-be-read points satisfy the maximum parallel dimension in the readout parameter group, the to-be-read points have fluorescence defects, and different fluorescence defects correspond to different to-be-read information; a photoelectric signal conversion module is used to receive reflected light reflected by the solid material, wherein the reflected light includes target light reflected by each of the M to-be-read points, and the photoelectric signal conversion module is also used to read the number of photons of the target light reflected by each of the M to-be-read points to obtain at least one fluorescence data, M and N are positive integers, and M is less than or equal to N; a processor is used to determine the readout parameter group, and to obtain the to-be-read information stored in each of the N to-be-read points based on at least one fluorescence data and a preset mapping relationship, wherein the number of photons corresponds to the fluorescence defect of the to-be-read point.

[0008] According to the method for high-speed information readout based on fluorescent defects in solid materials disclosed in the present invention, by determining a readout parameter group, exciting the fluorescent defects of N points to be read, and reading the number of photons of each of the N points to be read, and obtaining at least one fluorescence data by collecting the N points to be read at least once, the information to be read of each of the multiple points to be read is determined in parallel through the at least one fluorescence data and a preset mapping relationship, thereby realizing parallel reading of the multiple points to be read, at least partially solving the problem of low readout rate in the related art, and achieving the technical effect of improving the readout rate when reading out information stored in a solid material femtosecond processing fluorescent defect information storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above contents and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0010] Figure 1 A flowchart schematically shows a method for high-speed information readout based on fluorescent defects in solid materials according to an embodiment of the present disclosure;

[0011] Figure 2 A schematic diagram schematically shows a method of determining information to be read stored in each of N to-be-read points based on at least one piece of fluorescence data according to an embodiment of the present disclosure;

[0012] Figure 3 A graph schematically shows the probability of collecting a target number of photons for different information to be read within a target time period according to an embodiment of the present disclosure.

[0013] Figure 4 Schematically showing a fidelity curve of information to be read using different photon numbers as critical values ​​in a target range according to an embodiment of the present disclosure;

[0014] Figure 5 A schematic diagram schematically shows a method of determining information to be read stored in each of N to-be-read points based on at least one piece of fluorescence data after changing the target rotation speed of the rotating device according to an embodiment of the present disclosure;

[0015] Figure 6 The schematic diagram shows a process of combining multiple to-be-read information and multiple historical to-be-read information according to an embodiment of the present disclosure;

[0016] Figure 7 A schematic diagram of a system for high-speed information readout based on fluorescent defects in solid materials according to a first embodiment of the present disclosure is schematically shown;

[0017] Figure 8 A schematic diagram of a system for high-speed information readout based on fluorescent defects in solid materials according to a second embodiment of the present disclosure is schematically shown;

[0018] Fig. 9 A schematic diagram schematically shows a system for high-speed information readout based on fluorescent defects in solid materials according to a third embodiment of the present disclosure; and

[0019] Fig.10 A schematic diagram of a system for high-speed information readout based on fluorescent defects in solid materials according to a fourth embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0020] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0021] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0022] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0023] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0024] During the research process, it was found that the related technology usually adopts a single-point readout method when reading out the information stored in the system, and the readout rate before the target is on the order of 10 Hz, which is far from meeting practical requirements.

[0025] An embodiment of the present disclosure provides a system for high-speed information readout based on fluorescent defects in solid materials, including: determining a readout parameter group, wherein the readout parameter group is used to perform parallel information reading on N to-be-read points included in the solid material, the to-be-read points have fluorescent defects, and different fluorescent defects correspond to different information to be read; based on the readout parameter group, stimulating the fluorescent defects of each of the N to-be-read points, and reading the number of photons of each of the N to-be-read points to obtain at least one fluorescent data, wherein the fluorescent data includes the number of photons corresponding to each of the M to-be-read points, M and N are positive integers, N is less than or equal to M, and the number of photons corresponds to the fluorescent defects of the to-be-read points; based on at least one fluorescent data and a preset mapping relationship, obtaining the to-be-read information stored in each of the N to-be-read points.

[0026] Figure 1 The flowchart of the method for high-speed information readout based on fluorescent defects in solid materials according to an embodiment of the present disclosure is schematically shown.

[0027] like Figure 1 As shown, the method includes operations S110 to S130.

[0028] In operation S110 , a readout parameter group is determined, wherein the readout parameter group is used to perform parallel information reading on N to-be-read points included in the solid material, where the to-be-read points have fluorescent defects.

[0029] In operation S120, based on the readout parameter group, the fluorescence defects of N points to be read are stimulated, and the number of photons of each of the N points to be read is read to obtain at least one fluorescence data, wherein the fluorescence data includes the number of photons corresponding to each of the M points to be read, the number of photons corresponds to the fluorescence defects of the points to be read, M and N are positive integers, and M is less than or equal to N.

[0030] In operation S130, based on at least one fluorescent data and a preset mapping relationship, information to be read stored in each of the N to-be-read points is obtained.

[0031] According to the embodiments of the present disclosure, there is no limitation on the readout parameter group, which can be any parameter for parallel information reading of N points to be read, such as: maximum parallel dimension, light dot matrix modulation parameters, noise filtering parameters, movement parameters, acquisition position parameters and fluorescence readout layer channel processing element parameters, etc.

[0032] According to an embodiment of the present disclosure, the information to be read may be determined according to a preset mapping relationship, and the information to be read may be a digital coding group. The coding type of the digital coding group is not limited, and may be any coding type such as binary coding, octal coding, decimal coding, etc. The number of coding bits of the digital coding group is not limited, and may be any number of bits. It may be determined according to the preset mapping relationship or the dimension of the binary code stored in a point to be read when writing.

[0033] According to an embodiment of the present disclosure, the preset mapping relationship may include a mapping relationship between a target photon number and information to be read or a mapping relationship between a target range to which the target photon number belongs and information to be read. The target photon number may be obtained by summing the photon numbers collected at multiple collection times.

[0034] According to an embodiment of the present disclosure, the preset mapping relationship can be determined based on the mapping relationship between fluorescence intensity and the information to be read. Since the fluorescence intensity refers to the number of fluorescence photons per unit time, the corresponding relationship between the fluorescence intensity and the sum of the photon numbers can be determined by counting the sum of the photon numbers in the target time period and the multiple relationship between the target time period and the unit time, thereby determining the mapping relationship between the target photon number or target range and the information to be read.

[0035] According to an embodiment of the present disclosure, the preset mapping relationship can also be determined by determining the probability that the target number of photons is k measured at the to-be-read point storing different to-be-read information within the target time period, and determining the critical value corresponding to the different to-be-read information by the probability that the target number of photons is k measured at the to-be-read point storing different to-be-read information within the target time period, thereby determining the target range corresponding to multiple different to-be-read information respectively through the critical value.

[0036] According to the embodiments of the present disclosure, the specific material of the solid material is not limited and may be diamond, silicon carbide, gallium nitride, aluminum nitride, zinc oxide, lithium niobate, etc.

[0037] According to the embodiments of the present disclosure, the fluorescent defects include four dimensions, namely three-dimensional space + one-dimensional brightness. The fluorescent defects are generated by the interaction between the laser and the solid material. Different fluorescent defects correspond to different information to be read. By exciting the fluorescent defects in the point to be read and reading the number of photons within the target time, the information to be read stored in the point to be read can be determined.

[0038] According to an embodiment of the present disclosure, by reading out a parameter group, a solid material can be excited, thereby exciting the fluorescence defects of each of the N points to be read included in the solid material, and by reading the number of photons of each of the N points to be read after the excitation, the fluorescence data collected separately at at least one collection time can be obtained.

[0039] According to an embodiment of the present disclosure, when the solid material does not move, the target number of photons corresponding to each of the N to-be-read points can be determined by adding at least one fluorescence data, thereby determining the to-be-read information stored in each of the N to-be-read points.

[0040] According to an embodiment of the present disclosure, when the solid material moves, the target number of photons corresponding to each of the N to-be-read points can be determined by staggered addition of at least one fluorescence data, thereby determining the to-be-read information stored in each of the N to-be-read points.

[0041] According to the method for high-speed information readout based on fluorescent defects in solid materials disclosed in the present invention, by determining a readout parameter group, exciting the fluorescent defects of N points to be read, and reading the number of photons of each of the N points to be read, and obtaining at least one fluorescence data by collecting the N points to be read at least once, the information to be read of each of the multiple points to be read is determined in parallel through the at least one fluorescence data and a preset mapping relationship, thereby realizing parallel reading of the multiple points to be read, at least partially solving the problem of low readout rate in the related art, and achieving the technical effect of improving the readout rate when reading out information stored in a solid material femtosecond processing fluorescent defect information storage system.

[0042] According to an embodiment of the present disclosure, the readout parameter group includes movement parameters; the movement parameters are used to synchronously move the solid material during the process of reading information at N points to be read; when the movement processing is a rotation processing, the movement parameter is the target rotation speed of the solid material; wherein, the target rotation speed is determined in the following manner: the target rotation speed is determined based on the reading frequency of the fluorescence data.

[0043] According to an embodiment of the present disclosure, the target rotation speed may be in a preset multiple relationship with the reading frequency of the fluorescence data.

[0044] According to an embodiment of the present disclosure, the reading frequency may be related to the acquisition frequency of the photoelectric signal conversion module. Specifically, for example, when the photoelectric signal conversion module is a camera, the acquisition frequency may be the exposure frequency of the camera.

[0045] According to the embodiments of the present disclosure, the first movement parameter can be used to achieve uniform rotation of the solid material while realizing sliding reading of the information to be read at multiple points to be read, thereby avoiding the problem of acceleration and deceleration jitters caused by moving the solid material in a translational manner, which prolongs the reading time, and improves the reading rate of the information to be read.

[0046] According to an embodiment of the present disclosure, the fluorescence data is a fluorescence image taken by a high-speed camera; the collection time point of at least one fluorescence data is different; based on at least one fluorescence data and a preset mapping relationship, the to-be-read information stored in each of N to-be-read points is obtained, which may include the following operations.

[0047] For each fluorescent image, the fluorescent image is transformed into a matrix to obtain a photon number matrix; according to the reading frequency, the target rotation speed and the preset distance between adjacent points to be read in the N points to be read, the misalignment dimension between fluorescent images at adjacent acquisition time points in at least one fluorescent image is determined; based on the misalignment dimension and the acquisition time point of each of the at least one fluorescent image, the photon number matrices corresponding to each of the multiple fluorescent images are misaligned and calculated to obtain the target photon number of each of the N points to be read; for each point to be read, based on the target range to which the target photon number of the point to be read belongs, the to-be-read information stored in the point to be read is determined, wherein the preset mapping relationship includes the corresponding relationship between the target range and the to-be-read information.

[0048] According to an embodiment of the present disclosure, the fluorescent image is matrix-converted to obtain a photon number matrix, including:

[0049] Dividing the fluorescence image into grids to obtain a divided fluorescence image, so that the photon numbers of the M points to be read are respectively divided into respective grids;

[0050] The divided fluorescence image is transformed into a matrix to obtain a photon number matrix.

[0051] According to an embodiment of the present disclosure, at least one fluorescence data may be acquired in a target time period, and the target time period is not limited, and may be any time period that can effectively determine the information to be read, for example, 10us, 20us, etc. According to an embodiment of the present disclosure, a high-speed camera may capture a fluorescence image each time it is exposed, and at least one fluorescence image may be captured within the target time period, and the exposure frequency at this time is the acquisition frequency.

[0052] According to the embodiments of the present disclosure, when the solid material rotates, the high-speed camera can be used as a photoelectric signal conversion module. Since the solid material rotates, the multiple points collected by the high-speed camera each time may include M points to be read out of N points to be read, and the M points to be read for the fluorescent images collected at different collection time points may be misaligned.

[0053] According to an embodiment of the present disclosure, in some embodiments, grid division is first performed for each fluorescent image. Specifically, grid division can be performed based on the difference between light and dark areas in the fluorescent image.

[0054] According to the embodiments of the present disclosure, there is no limitation on the calculation of misalignment, and it may be the addition of misalignments or the averaging of the misalignments after addition.

[0055] According to an embodiment of the present disclosure, the divided fluorescent image includes multiple grids, each grid gives a photon number, and the photon number in each grid is extracted as text, and the photon number is written into the same position as the grid in the photon number matrix according to the position of the grid.

[0056] According to the embodiments of the present disclosure, in some embodiments, the target rotation speed is synchronized with the exposure frequency of the high-speed camera, that is, when the second frame exposure starts, the solid material just rotates through one point, and the edge of the exposure area just covers the next column, that is, the fluorescence image captured during the second frame exposure and the fluorescence image captured during the first frame exposure just differ by one column of points to be read, that is, it can be determined that the misalignment dimension between adjacent fluorescence images is 1. The above examples are only illustrative, and different misalignment dimensions can be obtained by adjusting the preset multiple relationship between the target rotation speed and the exposure frequency.

[0057] According to an embodiment of the present disclosure, in the order of acquiring the fluorescent images and based on the offset dimension, the photon number matrices corresponding to the multiple fluorescent images are offset and added, so that the target photon number of each point to be read can be determined.

[0058] Figure 2 The schematic diagram schematically shows a method of determining information to be read stored in each of N to-be-read points based on at least one piece of fluorescence data according to an embodiment of the present disclosure.

[0059] like Figure 2As shown, the target rotation speed is synchronized with the exposure frequency of the high-speed camera. For the convenience of description, three fluorescence images with adjacent acquisition time points are selected for illustration. In some embodiments, at least one fluorescence image may be more than three. 210 is a schematic data, that is, the storage of the to-be-read data stored in each of the multiple storage points at the solid material. For the convenience of understanding, it can be considered that it includes a to-be-read column, and the to-be-read column includes N to-be-read points. In this embodiment, it is considered that the maximum matrix dimension is 3×8.

[0060] According to an embodiment of the present disclosure, when reading out, the first frame exposure, i.e., 1 st The read fluorescence image is shown in 220. The second frame exposure is 2 st The read fluorescence image is shown in 230, and the third frame exposure is 3 st The read fluorescence image is shown in 240. The misalignment dimension is determined to be 1 by calculation. From what is shown in 210 to 240, it can be determined that the column to be read is located in the third column of 220, the second column of 230, and the third column of 240, that is, the data in adjacent fluorescence images differ by one column. By performing misalignment addition or averaging after misalignment addition on the photon number matrices corresponding to the multiple fluorescence images, the final 250 is the target photon number of the point to be read in the column to be read.

[0061] According to the embodiments of the present disclosure, by accumulating the fluorescent images obtained by exposing multiple frames within the target time period, the target number of photons in the point to be read is determined, and the information to be read stored in the point to be read is determined by the target number of photons. It is possible to improve the fidelity of the information to be read by accumulating multiple frames, that is, the number of photons is increased, and the fidelity of the translation from the photon number matrix to the digital coding group matrix, that is, the information to be read matrix, reaches the expected level.

[0062] According to the embodiments of the present disclosure, in some embodiments, it is found that when the parallel readout dimension is , the interval between adjacent points to be read is 1um, the arc radius is r=10mm, and the target speed is The readout rate reaches 100M / s, which can ensure the readout fidelity reaches 99%.

[0063] Figure 3 A curve chart representing the probability of collecting a target number of photons within a target time period for different to-be-read information according to an embodiment of the present disclosure is schematically shown.

[0064] Figure 4 A fidelity curve diagram of information to be read using different photon numbers as critical values ​​in a target range according to an embodiment of the present disclosure is schematically shown.

[0065] According to an embodiment of the present disclosure, when the information to be read is a binary code group, a process of determining target ranges corresponding to different information to be read respectively when the information to be read is 1 or 0 is exemplified.

[0066] According to the embodiments of the present disclosure, for the mapping relationship between fluorescence intensity and information to be read: when the fluorescence brightness of a single point to be read is 10 kcps, the corresponding information to be read is 0, and when the fluorescence brightness of a single point to be read is 1 Mcps, the corresponding information to be read is 1, it is possible to determine the first point to be read that stores information to be read as 0 and the second point to be read that stores information to be read as 1, and accumulate and read them out for 10 us respectively. Since the photoelectric signal conversion module will perform multiple photon readings on the first point to be read and the second point to be read respectively within 10 us, it is possible to determine that the first expected value of the multiple first photon numbers read out of the first point to be read within 10 us is μ1=0.1 and the second expected value of the multiple second photon numbers read out of the second point to be read within 10 us is μ2=10, and it is found that the multiple first photon numbers and the multiple second photon numbers satisfy the Poisson distribution. Therefore, the distribution curve corresponding to the information to be read as 0 can be obtained through the first expected value, and the distribution curve corresponding to the information to be read as 1 can be obtained through the second expected value. Figure 3 As shown, the horizontal axis represents the target photon number, and the vertical axis represents the probability of measuring the target photon number as k within 10us, k=0, 1, 2...n.

[0067] According to the embodiment of the present disclosure, Figure 7 It can be seen that for the first to-be-read point with the first expectation of μ=0.1 and the second to-be-read point with the second expectation of μ=10, the probability of different photons is measured within 10us, and it can be seen that the number of photons is 3, which is the critical value. Therefore, the target number of photons can be used as a judgment basis, and it is considered that when 3 or less photons are collected within 10us, the to-be-read information stored in the to-be-read point is 0, and when more than 3 photons are collected within 10us, the to-be-read information stored in the to-be-read point is 1.

[0068] According to the embodiments of the present disclosure, and as Figure 4 As shown in FIG. 1 , the average fidelity curve obtained when different target photon numbers are used as critical values ​​is calculated. The critical value can be considered that when it is less than or equal to the critical value, the information to be read is 0; when it is greater than the critical value, the information to be read is 1.

[0069] According to the embodiments of the present disclosure, the specific determination process of the average fidelity curve can be determined by determining, when the critical value is the target photon number k, a first fidelity when the information to be read is 0 when it is less than or equal to the critical value, and a second fidelity when the information to be read is 1 when it is greater than the critical value, and determining the average fidelity of the critical value k by the average of the first fidelity and the second fidelity. The first fidelity can be obtained by determining the total probability that the information to be read is 0 when it is less than or equal to the critical value divided by the sum of the total probability that the information to be read is 0 when it is less than or equal to the critical value and the total probability that the information to be read is 1 when it is less than or equal to the critical value. The second fidelity can be obtained by determining the total probability that the information to be read is 1 when it is greater than the critical value divided by the sum of the total probability that the information to be read is 1 when it is greater than the critical value and the total probability that the information to be read is 0 when it is greater than the critical value.

[0070] According to an embodiment of the present disclosure, Figure 4 The horizontal axis is the target photon number, and the vertical axis is the fidelity. Figure 3 and Figure 4 It can be seen that, with 3 target photon numbers as the critical value, when the target photon number belongs to the target range of less than or equal to 3, the information to be read is determined to be binary coded 0; when the target photon number belongs to the target range of greater than 3, the information to be read is determined to be binary coded 1, and 0 bits can be read with 99.99% fidelity and 1 bit can be read with 99.41% fidelity. Therefore, the single-point cumulative reading time of 10us is sufficient to convert the photon count information into coded information with high fidelity, that is, compared with determining the information to be read by the correspondence between the fluorescence brightness and the information to be read, the reading time can be reduced and the overall reading rate can be improved.

[0071] According to the embodiments of the present disclosure, it should be noted that the embodiments are merely illustrative, and the process of determining the target ranges corresponding to different information to be read may be implemented in the same or similar manner as described above. For example, when the information to be read is an octal code group, a decimal code group, or a hexadecimal code group, or for different code lengths such as the information to be read is 00, 01, 10, or 11, the above-mentioned manner may be used to determine the target ranges corresponding to different information to be read.

[0072] Figure 5 A schematic diagram schematically shows how to determine the to-be-read information stored in each of N to-be-read points based on at least one piece of fluorescence data after changing the target rotation speed of the rotating device according to an embodiment of the present disclosure.

[0073] According to the embodiments of the present disclosure, in order to improve the fidelity, the target rotation speed of the rotating device can be further slowed down, for example: the target rotation speed is set to 1 / 2 times the reading frequency, so that in the read-out fluorescence data, the separation distance between the points to be read will be larger, so that the conversion fidelity of the spatial distribution of the points to be read to the photon number matrix is ​​higher, and the size of the reading matrix dimension during parallel reading can be adjusted, so that after the rotation speed is adjusted to 1 / 2 of the original speed, it will not affect the read-out speed.

[0074] like Figure 5 As shown in the figure, the photon number matrix of the fluorescence image read out three times is staggered and added or averaged after staggered addition. The cumulative time of reading remains unchanged, but the fidelity of extracting the fluorescence distribution matrix is ​​higher. At the same time, the length of the target time period can be increased to make the reading time of a single point longer, thereby improving the fidelity and avoiding the situation where the number of photons read out at a single point is too small, which may not meet the requirements of extracting the photon number matrix with high fidelity.

[0075] According to an embodiment of the present disclosure, the to-be-read points include multiple storage layers, and different storage layers are located at different depths of the to-be-read points; when the to-be-read information stored in each of the N to-be-read points is located in at least two to-be-read storage layers, the above method may further include the following operations.

[0076] At least two storage layers to be read are determined based on the storage addresses of the information to be read corresponding to each of the N points to be read.

[0077] The readout parameter group further includes acquisition position parameters or fluorescence readout layer channel processing element parameters; the acquisition position parameters and the fluorescence readout layer channel processing element parameters are determined in the following manner.

[0078] Based on the optical path corresponding to the surface storage layer of the solid material, the interlayer spacing between two adjacent storage layers and the module properties of the fluorescence collection module, the optical path corresponding to each of the multiple storage layers is determined, wherein the surface storage layer represents the storage layer located at the topmost layer of the solid material; based on the optical path corresponding to each of the multiple storage layers, the target optical path corresponding to each of the at least two storage layers to be read is determined; based on the target optical path corresponding to each of the at least two storage layers to be read, the collection position parameters for simultaneously reading the at least two storage layers to be read or the fluorescence readout layer channel processing element parameters for simultaneously generating the target optical path are determined.

[0079] According to an embodiment of the present disclosure, the fluorescence collection module may be an objective lens, and its module attribute may be the magnification of the objective lens.

[0080] According to an embodiment of the present disclosure, the storage address of the information to be read may include the position of the information to be read in the solid material, the storage layer information where the information to be read is located, and the like.

[0081] According to the embodiments of the present disclosure, the optical path corresponding to the surface storage layer may be obtained through experiments, and the interlayer spacing may be obtained through preset data or through actual measurement.

[0082] According to the embodiments of the present disclosure, the optical path corresponding to the surface storage layer may be obtained through experiments, and the interlayer spacing may be preset or obtained through actual measurement.

[0083] According to an embodiment of the present disclosure, the fluorescence collection module attribute may include the magnification of the fluorescence collection module.

[0084] According to the embodiments of the present disclosure, in some embodiments, the optical path corresponding to the surface storage layer is 200 mm, the interlayer spacing is 2 um, and the magnification of the fluorescence collection module is 100 times, and the optical path corresponding to the next storage layer of the surface storage layer is: 200 mm + 2 um × 100. Thus, the optical paths corresponding to the multiple storage layers can be obtained in the same way.

[0085] According to an embodiment of the present disclosure, the fluorescence readout layer channel processing element parameter may be a shape parameter of the second spectroscopic crystal, and the acquisition position parameter may be a position parameter of the photoelectric signal conversion module.

[0086] According to the embodiments of the present disclosure, the optical paths corresponding to the multiple storage layers can be passed in advance, thereby determining the acquisition position parameters corresponding to the multiple optical paths.

[0087] According to the embodiments of the present disclosure, a plurality of preset second spectroscopic crystals having different fluorescence readout layer channel processing element parameters can be determined, and at least two preset optical paths obtainable by the preset second spectroscopic crystals can be determined; the at least two preset optical paths obtainable by each of the plurality of preset second spectroscopic crystals are matched with the target optical paths corresponding to the at least two storage layers to be tested, thereby determining the target preset second spectroscopic crystal corresponding to the at least two storage layers to be tested; and the fluorescence readout layer channel processing element parameters for simultaneously generating the target optical paths are determined based on the target preset second spectroscopic crystal.

[0088] According to the embodiments of the present disclosure, by using acquisition position parameters for simultaneously reading at least two storage layers to be read, it is possible to simultaneously read information from at least two storage layers to be read, thereby accelerating the information reading rate.

[0089] According to an embodiment of the present disclosure, the target preset second spectroscopic crystal determined by the parameters of the fluorescent readout layer channel processing element is used to adjust the three-dimensional information of different storage layers layer by layer onto a plane, thereby realizing the reading of the to-be-read information of multiple different storage layers through an optoelectronic signal conversion module.

[0090] According to an embodiment of the present disclosure, the method for high-speed information reading based on fluorescent defects in solid materials may also include: in response to receiving fluorescent data, performing a noise removal operation on the fluorescent data to remove inter-layer noise caused by other storage layers in multiple storage layers except the storage layer to be read and intra-layer noise generated by adjacent points to be read in the storage layer to be read.

[0091] According to an embodiment of the present disclosure, the noise removal operation can also be based on the association relationship between multiple storage layers, and the noise removal between layers can be performed through the to-be-read data of the storage layers with the association relationship. The association relationship can be an adjacent relationship, etc.

[0092] According to an embodiment of the present disclosure, the noise removal operation may be implemented based on a component integrated with a denoising program, and the denoising program may be obtained through an image processing algorithm, such as a tophat algorithm.

[0093] According to the embodiments of the present disclosure, when a solid material is excited, information to be read between different storage layers may be collected simultaneously. To improve the readout fidelity of a single-layer readout, an image processing algorithm may be used to remove the fluorescence noise introduced by the non-tested storage layer.

[0094] According to an embodiment of the present disclosure, the readout parameter group also includes a maximum parallel dimension, a light dot matrix modulation parameter, and a noise filtering parameter; the N points to be read are determined in the following manner.

[0095] Based on the collection range of the fluorescence collection module, the excitation power of the fluorescence defect excitation module and the module properties of the photoelectric signal conversion module, the maximum parallel number is determined, wherein the fluorescence defect excitation module is used to excite the fluorescence defect of the to-be-read point to make it emit fluorescence; the photoelectric signal conversion module is used to read the number of photons of the to-be-read point; the maximum parallel dimension is determined based on the maximum parallel number; when there is a correlation between the unread information corresponding to each of the multiple candidate to-be-read points and the historical to-be-read information corresponding to each of the multiple historical to-be-read points, the target historical to-be-read point is determined from the multiple historical to-be-read points; based on the target historical to-be-read point and the maximum parallel dimension, the target candidate to-be-read point is determined from the multiple candidate to-be-read points; based on the target historical to-be-read point and the target candidate to-be-read point, N to-be-read points are obtained, so that based on the historical to-be-read information of the target candidate to-be-read point, the positional relationship between the to-be-read information of each of the N to-be-read points and the historical to-be-read information of each of the multiple historical to-be-read points is determined.

[0096] According to an embodiment of the present disclosure, the candidate to-be-read points may be points where information is to be read, the candidate to-be-read points may include points to be read, the historical to-be-read points may be points where information has been read, and the historical to-be-read information corresponding to each of the multiple historical to-be-read points may be read.

[0097] According to an embodiment of the present disclosure, the photoelectric signal conversion module may be a common camera, a complementary metal oxide semiconductor, a two-dimensional fluorescence detection array or a high-speed camera, etc., and the module attribute of the photoelectric signal conversion module may be resolution.

[0098] According to an embodiment of the present disclosure, the fluorescent defect excitation module may be a light source.

[0099] According to an embodiment of the present disclosure, the maximum matrix dimension can be determined by the maximum parallel number. Specifically, the first maximum parallel number range of the points to be read is determined by the excitation power of the fluorescent defect excitation module and the preset distance between the adjacent points to be read, the second parallel number range is determined by the module properties of the photoelectric signal conversion module, and the third maximum parallel number range is determined by the collection range and preset distance of the fluorescent collection module. The target parallel number is determined by taking the intersection of the first maximum parallel number range, the second maximum parallel number range, and the third maximum parallel number range, thereby randomly generating the maximum matrix dimension based on the target parallel number.

[0100] According to the embodiments of the present disclosure, in some embodiments, the collection range of the fluorescence collection module is 200um×200um, and the effective excitation light power density of a single light spot is 500uw / (Pi*0.09um^2). If all the fluorescent defects in the field of view need to be excited, a fluorescent defect excitation module with a power of about 70W is required, and the general fluorescent defect excitation module device cannot achieve such a higher output power. Since the maximum power of the commonly used fluorescent defect excitation module is 5W, a fluorescent defect excitation module with a power of 5W is usually selected.

[0101] According to the embodiments of the present disclosure, in some embodiments, under the condition of full power output of 5W, the range that can be excited is on the order of 50um×50um, and then through the preset distance between two adjacent points, for example, the preset distance is: 500nm, that is, the first maximum parallel number range Np1 of the points to be read is less than or equal to 10000, and the module attribute of the photoelectric signal conversion module is approximately 1000*1000, then it can be determined that the second maximum parallel number range Np2 of the points to be read is less than or equal to 1000000, and the module attribute of the fluorescence collection module is 200um, that is, the third maximum parallel number range is Np3 less than or equal to 400: thereby taking the intersection of the first maximum parallel number range, the second maximum parallel number range and the third maximum parallel number, it can be determined that the target maximum parallel number range is Np less than or equal to 400, and then a maximum matrix dimension that meets the target parallel number range can be randomly generated.

[0102] According to the embodiments of the present disclosure, by predetermining the maximum matrix dimension before reading the information to be read, it is possible to perform parallel reading of more points while ensuring the reading fidelity, thereby accelerating the reading speed.

[0103] According to an embodiment of the present disclosure, the association between the unread information corresponding to each of the multiple candidate to-be-read points and the historical to-be-read information corresponding to each of the multiple historical to-be-read points can be used to obtain valid data by splicing the unread information with the historical to-be-read information.

[0104] According to an embodiment of the present disclosure, the historical to-be-read points may be the N to-be-read points read last time. In order to facilitate smooth splicing of the to-be-read information read out at different times, multiple target historical to-be-read points may be determined from the historical reading matrix formed by the previous N historical to-be-read points, so that repeated information exists in the historical to-be-read information and the to-be-read information read this time, so as to facilitate splicing of the information read out twice based on the repeated information.

[0105] According to the embodiments of the present disclosure, in order to smoothly splice the data to be read out at different times and improve the read fidelity, a part of the N to-be-read positions read out once are used to align the splicing position. At the same time, in order to ensure the convenience of information splicing, the N to-be-read points can be formed into a rectangular parallel readout matrix, so that the splicing position can be located through a row or a column of the same data.

[0106] Figure 6 The diagram schematically illustrates a process of splicing a plurality of to-be-read information and a plurality of historical to-be-read information according to an embodiment of the present disclosure.

[0107] like Figure 6 As shown, 610 is the historical to-be-read information corresponding to multiple historical to-be-read points, 620 is the to-be-read information corresponding to N to-be-read points, the yellow dots can be historical to-be-read information or splicing information that has not been read but is used for positioning, the black dots are target historical candidate to-be-read points or target candidate to-be-read points, the historical to-be-read data represented by the yellow dots on the right side of 610 can be the same as the to-be-read data represented in the first column on the left side of 620, the to-be-read data represented by the yellow dots on the left side of 620 can be the target historical to-be-read points, which are the same as the historical to-be-read data represented by the black dots in the last column on the right side of 610, so that 610 and 620 can be spliced ​​based on the yellow dots to obtain 630.

[0108] According to the embodiments of the present disclosure, for information with a correlation relationship read in different orders, the to-be-read points used for positioning can be determined by preset, so that effective splicing can be performed after reading.

[0109] Figure 7 The schematic diagram of a system for high-speed information readout based on fluorescent defects in solid materials according to the first embodiment of the present disclosure is schematically shown.

[0110] like Figure 7 As shown, the system includes: a fluorescence defect excitation module, a photoelectric signal conversion module and a processor.

[0111] The fluorescence defect excitation module is used to emit a light signal and transmit the light signal to a solid material through a lens group to excite N points to be read in the solid material, wherein the points to be read satisfy the maximum parallel dimension in the readout parameter group, the points to be read have fluorescence defects, and different fluorescence defects correspond to different information to be read.

[0112] The photoelectric signal conversion module is used to receive reflected light reflected by a solid material, wherein the reflected light includes target light reflected by each of the M points to be read. The photoelectric signal conversion module is also used to read the number of photons of the target light reflected by each of the M points to be read to obtain at least one fluorescence data, where M and N are positive integers, and M is less than or equal to N.

[0113] The processor is used to determine a readout parameter group and to obtain the to-be-read information stored in each of N to-be-read points based on at least one fluorescence data and a preset mapping relationship, wherein the number of photons corresponds to the fluorescence defect of the to-be-read point.

[0114] According to the embodiments of the present disclosure, the type of the fluorescence defect excitation module is not limited and may be wide-field light. The implementation method of the fluorescence defect excitation module is not limited and may be implemented by any light-emitting device, such as a laser.

[0115] According to an embodiment of the present disclosure, when selecting a fluorescent defect excitation module, the fluorescent defect excitation module may be selected according to the absorption spectrum of the solid material, thereby selecting a fluorescent defect excitation module in a wavelength band that the solid material can absorb well.

[0116] According to an embodiment of the present disclosure, a solid material may include a plurality of fluorescent defects, each of which corresponds to a point to be read.

[0117] According to an embodiment of the present disclosure, the target light may be the fluorescence emitted by the fluorescent defect at the point to be read.

[0118] According to an embodiment of the present disclosure, the photoelectric signal conversion module is used to perform photoelectric conversion on the target light reflected by each of the M points to be read, and obtain the photon number information of each of the M points to be read. According to an embodiment of the present disclosure, the lens group includes: a lens, a fluorescence collection module and a dichroic mirror, and the fluorescence collection module is used to converge the light signal, reduce the writing size of a single laser point, thereby better exciting the solid material and improving the accuracy of the photon number reading.

[0119] According to an embodiment of the present disclosure, a dichroic mirror is used to split the initial reflected light reflected by the solid material, distinguish the fluorescent reflected light excited by the fluorescent defects of each of the M points to be read from the redundant reflected light, and refract the fluorescence emitted by the fluorescent defects of each of the M points to be read for transmission to the photoelectric signal conversion module.

[0120] According to an embodiment of the present disclosure, the base is used to place solid materials and move the solid materials according to needs. The movement processing of the solid materials can be divided into translation processing and rotation processing.

[0121] According to the embodiments of the present disclosure, by stimulating a fluorescent defect through a fluorescent defect excitation module, causing it to emit light and be measured by a photoelectric signal conversion module, the number of photons in the fluorescent defect can be determined, and the information to be read can be obtained through a preset mapping relationship, thereby realizing the reading of the stored information to be read at the point to be read.

[0122] According to an embodiment of the present disclosure, the processor may be electrically connected to the fluorescence defect excitation module, the photoelectric signal conversion module, the base, the fluorescence collection module, etc. The processor may be a computer, a dedicated data processing chip, etc.

[0123] According to an embodiment of the present disclosure, the processor is used to perform matrix conversion on the fluorescent image for each fluorescent image to obtain a photon number matrix; determine the misalignment dimension between fluorescent images at adjacent acquisition time points in at least one fluorescent image according to the reading frequency, the target rotation speed and the preset distance between adjacent points to be read among the N points to be read; perform misalignment calculation on the photon number matrices corresponding to each of the multiple fluorescent images based on the misalignment dimension and the respective acquisition time of at least one fluorescent image to obtain the target photon number of each of the N points to be read; for each point to be read, determine the to-be-read information stored at the point to be read based on the target range to which the target photon number of the point to be read belongs, wherein the preset mapping relationship includes the correspondence between the target range and the information to be read.

[0124] According to an embodiment of the present disclosure, the processor is also used to determine the maximum parallel number based on the collection range of the fluorescence collection module, the excitation power of the fluorescence defect excitation module of the fluorescence collection module, and the module properties of the photoelectric signal conversion module, wherein the fluorescence defect excitation module is used to excite the fluorescence defect of the to-be-read point to make it emit fluorescence; the photoelectric signal conversion module is used to read the number of photons of the to-be-read point; the maximum parallel dimension is determined based on the maximum parallel number; when there is a correlation between the unread information corresponding to each of the multiple candidate to-be-read points and the historical to-be-read information corresponding to each of the multiple historical to-be-read points, the target historical to-be-read point is determined from the multiple historical to-be-read points; based on the target historical to-be-read point and the maximum parallel dimension, the target candidate to-be-read point is determined from the multiple candidate to-be-read points; based on the target historical to-be-read point and the target candidate to-be-read point, N to-be-read points are obtained, so that based on the historical to-be-read information of the target candidate to-be-read point, the positional relationship between the to-be-read information of each of the N to-be-read points and the historical to-be-read information of each of the multiple historical to-be-read points is determined.

[0125] According to the embodiments of the present disclosure, wide-field light illumination is used to simultaneously excite fluorescent defects in a preset area using wide-field light to make them emit light, and the light of the fluorescent defects is measured by a photoelectric signal conversion module to obtain the number of photons and spatial distribution of each fluorescent defect in the preset area, so as to achieve parallel readout of the same area, read out the spatial information and fluorescence intensity information of N points to be read, obtain the digital coding group of each point to be read through the correspondence of the preset mapping relationship during writing, and splice the digital groups in sequence through the above-mentioned spatial information to achieve high-speed and accurate reading of the written information.

[0126] According to an embodiment of the present disclosure, N points to be read can be determined from a solid material based on the maximum matrix dimension, and the positions of the N points to be read in the solid material can be sent to a fluorescence collection module or a base, so that the fluorescence collection module determines a focal plane position that matches the N points to be read or the focal plane of the fluorescence collection module is matched with the N points to be read through the base.

[0127] According to the embodiments of the present disclosure, the excitation power of the fluorescent defect excitation module may be adjusted to adjust the number of points to be read in parallel or the maximum matrix dimension.

[0128] According to an embodiment of the present disclosure, when reading N points to be read, a matrix shape with a maximum matrix dimension may be used to read the N points to be read.

[0129] According to an embodiment of the present disclosure, the maximum matrix dimension refers to the dimension of a readout matrix that can be formed by the selected points to be read when performing parallel readout, which includes row number information and column number information.

[0130] According to an embodiment of the present disclosure, the imaging plane for reading multiple points to be read in the photoelectric signal conversion module is as follows: Figure 7 shown.

[0131] Figure 8 A schematic diagram of a system for high-speed information readout based on fluorescent defects in solid materials according to a second embodiment of the present disclosure is schematically shown.

[0132] like Figure 8 As shown, in the case where the information to be read stored in each of the N to-be-read points is located in at least two to-be-read storage layers, on the basis of the system for high-speed information readout based on fluorescent defects in solid materials in the first embodiment, the system may also include: a first spectroscopic crystal. In this embodiment, there may be at least two photoelectric signal conversion modules.

[0133] According to an embodiment of the present disclosure, the point to be read includes multiple storage layers, and different storage layers are located at different depths of the point to be read; the readout parameter group also includes acquisition position parameters.

[0134] The first splitting crystal is used to split the reflected light to obtain at least two split light beams, so that each photoelectric signal conversion module can receive the corresponding split light beam and read the number of photons of the target light reflected by each of the M points to be read included in the split light beam, wherein the optical path of at least two split light beams is different, and the target optical path corresponding to each of the at least two storage layers to be tested corresponds one-to-one to the optical path of each of the at least two target split light beams.

[0135] The at least two photoelectric signal conversion modules are also used to be respectively located at acquisition positions that match the acquisition position parameters sent by the processor, so as to read the to-be-read information in the at least two to-be-read storage layers.

[0136] According to the embodiments of the present disclosure, in some embodiments, a first spectroscopic crystal with different fluorescence readout layer channel processing element parameters can be used to change the optical path of the reflected light, or the optical path of the reflected light can be changed by moving at least two optoelectronic signal conversion modules.

[0137] According to an embodiment of the present disclosure, a denoising module can be connected after the photoelectric signal conversion module. The denoising module can be a hardware device with an integrated denoising program. The denoising program can also be obtained through an image processing algorithm, such as: Tophat algorithm, or at least one collected fluorescence data is sent to a processor for denoising, so as to remove the noise caused by different storage layers and the intra-layer noise generated by adjacent points to be read in the storage layer to be read.

[0138] According to an embodiment of the present disclosure, the denoising module may also perform inter-layer noise removal based on the association relationship between multiple storage layers through the to-be-read data of the storage layers with the association relationship. The association relationship may be an adjacent relationship, etc.

[0139] According to an embodiment of the present disclosure, the imaging plane of the photoelectric signal conversion module 1 and the imaging plane of the photoelectric signal conversion module 2 are as follows: Figure 8 shown.

[0140] According to the embodiments of the present disclosure, since the optical path length of at least one split light beam is different, the imaging planes of different storage layers can be easily separated by at least two photoelectric signal conversion modules, so that the information to be read stored in two layers can be read out simultaneously.

[0141] Fig. 9 A schematic diagram of a system for high-speed information readout based on fluorescent defects in solid materials according to a third embodiment of the present disclosure is schematically shown.

[0142] like Fig. 9As shown, when the information to be read stored in each of the N to-be-read points is located in at least two to-be-read storage layers, based on the system for high-speed information readout based on fluorescent defects in solid materials in the first embodiment, the system may further include: at least one second spectroscopic crystal. In this embodiment, there may be at least one photoelectric signal conversion module.

[0143] According to an embodiment of the present disclosure, the point to be read includes multiple storage layers, different storage layers are located at different depths of the point to be read, and the multiple storage layers respectively store information to be read; the readout parameter group also includes fluorescent readout layer channel processing element parameters.

[0144] According to the embodiments of the present disclosure, at least one second spectroscopic crystal is provided, each of which is used to split the reflected light to obtain at least two initial spectroscopic lights, and to perform optical path compensation on the at least two initial spectroscopic lights to obtain at least two target spectroscopic lights, so that the photoelectric signal conversion module corresponding to the at least two target spectroscopic lights can simultaneously read the number of photons of the target light reflected by the M points to be read included in each of the at least two target spectroscopic lights, and obtain the number of photons of the target light reflected by the M points to be read included in each of the at least two storage layers to be read. The target optical paths corresponding to the at least two storage layers to be tested correspond to the optical paths of the at least two target spectroscopic lights, and the shape of the second spectroscopic crystal matches the parameters of the channel processing element of the fluorescent readout layer.

[0145] According to the embodiments of the present disclosure, there can be multiple photoelectric signal conversion modules. It is only necessary to change the shape of the second spectroscopic crystal so that the second spectroscopic crystal refracts the reflected light so that the multiple photoelectric signal conversion modules respectively obtain multiple split light beams, and the optical paths of the multiple split light beams are different. This can enable each of the multiple photoelectric signal conversion modules to simultaneously read the to-be-read information stored in multiple storage layers.

[0146] According to an embodiment of the present disclosure, there may be multiple second light-splitting crystals, and by making one second light-splitting crystal correspond to one photoelectric signal conversion module, multiple storage layers can be read simultaneously.

[0147] According to the embodiments of the present disclosure, due to the special shape of the second beam splitting crystal, the reflected light can be split, and different beams can undergo different refraction processes to achieve different optical paths for the different beams.

[0148] According to the embodiments of the present disclosure, by adjusting the optical path of the reflected light through the second spectroscopic crystal, the three-dimensional information of different storage layers can be adjusted layer by layer onto a plane, thereby realizing reading out the to-be-read information of multiple different storage layers through one photoelectric signal conversion module.

[0149] According to the embodiments of the present disclosure, a fluorescent defect excitation module is used to illuminate a preset area, and the rear focal planes of fluorescent defect excitation modules of different layers are different. Multiple splitting of the light by the splitting crystal is utilized, and the two beams of light split each time experience different optical path lengths, so that the optical path lengths of the light on different splitting paths are adjusted. This can enable images of different focal planes to be pulled to the same plane and read out in the same photoelectric signal conversion module, thereby realizing synchronous reading of the to-be-read information of different storage layers, i.e., synchronous reading of three-dimensional information.

[0150] According to the embodiments of the present disclosure, Figure 7 As shown, it represents the imaging plane of the storage layers 1 to 3 to be read read by the photoelectric signal conversion module 2. Through 720, it can be seen that the different storage layers are adjusted layer by layer to a plane. Through 730, it can be seen that the imaging plane of the storage layers 1 to 3 after denoising by the denoising module or processor is clearer. Figure 7 It can be seen that the second splitter crystal can change the splitting of the reflected light and change the propagation direction of the split light, so that the photoelectric signal conversion module 1 can be omitted, and the photoelectric signal conversion module 2 can be used to read the information to be read in multiple storage layers.

[0151] According to an embodiment of the present disclosure, in this embodiment, the system may further include: a denoising module. The denoising module is electrically connected to the photoelectric signal conversion module, and the denoising module is used to remove interlayer noise caused by other storage layers except the storage layer to be tested in at least two split beams of light.

[0152] According to the embodiments of the present disclosure, under the illumination conditions of the fluorescent defect excitation module on the solid material, the information to be read between different storage layers will be collected at the same time, and the layer-by-layer spectroscopic fidelity of the spectroscopic crystal is not higher. In order to improve the readout fidelity of a single-layer readout, an image processing algorithm can be used to remove the fluorescent noise introduced by the storage layer not to be tested.

[0153] Fig.10 A schematic diagram of a system for high-speed information readout based on fluorescent defects in solid materials according to a fourth embodiment of the present disclosure is schematically shown.

[0154] like Fig.10 As shown, based on the system for high-speed information readout based on fluorescent defects in solid materials of the first embodiment, the system may further include: a first modulator and a second modulator. The readout parameter group also includes: light dot matrix modulation parameters and noise filtering parameters;

[0155] A first modulator is placed within the optical path of the optical signal, and is used to modulate the optical signal into an optical dot matrix matching the maximum matrix dimension based on the optical dot matrix modulation parameter;

[0156] The second modulator is placed within the optical path of the reflected light, and is used to perform denoising on the reflected light based on the noise filtering parameters.

[0157] According to an embodiment of the present disclosure, based on the system for high-speed information readout based on fluorescent defects in solid materials of the second embodiment or the third embodiment, the system may further include: a first modulator and a second modulator.

[0158] According to an embodiment of the present disclosure, both the first modulator and the second modulator may be a deformable mirror or a spatial light modulator.

[0159] According to the embodiments of the present disclosure, since the writing dot matrix is ​​usually periodic writing during writing, and the maximum matrix dimension is mainly limited by the power of the fluorescent defect excitation module during parallel reading, a first modulator can be placed in the excitation light path of the fluorescent defect excitation module to the solid material, so as to modulate the optical signal into an array matching the maximum matrix dimension, thereby increasing the optical power density at the site to be read, thereby improving the readout fidelity and parallel number.

[0160] According to the embodiments of the present disclosure, by placing the second modulator within the optical path of the reflected light, the point spread function in the optoelectronic signal conversion module can be corrected, thereby reducing inter-layer crosstalk and increasing readout fidelity.

[0161] According to an embodiment of the present disclosure, the processor is further used to determine at least two storage layers to be read based on the storage addresses of the information to be read corresponding to each of the N points to be read; and to determine the optical path corresponding to each of the multiple storage layers based on the optical path corresponding to the surface storage layer of the solid material, the interlayer spacing between two adjacent storage layers, and the module properties of the fluorescence collection module, wherein the surface storage layer represents the storage layer located at the uppermost layer of the solid material; based on the optical path corresponding to each of the multiple storage layers, determine the target optical path corresponding to each of the at least two storage layers to be read; based on the target optical path corresponding to each of the at least two storage layers to be read, determine the acquisition position parameters for simultaneously reading the at least two storage layers to be read and the fluorescence readout layer channel processing element parameters for simultaneously generating the target optical path. According to an embodiment of the present disclosure, the photoelectric signal conversion module includes: an ordinary camera, a complementary metal oxide semiconductor, a two-dimensional fluorescence detection array, or a high-speed camera; and the readout parameter group also includes a target rotation speed.

[0162] Wherein, when the photoelectric signal conversion module is a high-speed camera, based on the system for high-speed information readout based on fluorescent defects in solid materials of the first embodiment, the second embodiment, the third embodiment or the fourth embodiment, the system may further include a rotating device.

[0163] The rotating device is used for placing the solid material and rotating the solid material based on a target rotation speed.

[0164] According to an embodiment of the present disclosure, the photoelectric signal conversion module can be an ordinary camera, a complementary metal oxide semiconductor, a two-dimensional fluorescence detection array or a high-speed camera. There is no limitation on the type of ordinary camera or high-speed camera, and it can be a charge-coupled device (CCD) camera.

[0165] According to the embodiments of the present disclosure, the bases of the first to fourth embodiments can be a turntable device, so that the turntable device can rotate while performing parallel reading, so as to smoothly read information from the points to be read in different preset areas, thereby accelerating the reading rate. At the same time, the platform time of the displacement stage of the base performing translational movement, such as the translation stage, can be avoided, thereby increasing the readout duty cycle and achieving a higher readout rate.

[0166] According to an embodiment of the present disclosure, the processor is used to determine the target rotation speed based on the reading frequency of the fluorescence data.

[0167] According to an embodiment of the present disclosure, the processor is also used to perform noise removal operations on the fluorescence data in response to receiving the fluorescence data, so as to remove inter-layer noise caused by other storage layers in multiple storage layers except the storage layer to be read and intra-layer noise generated by adjacent points to be read in the storage layer to be read.

[0168] According to the embodiments of the present disclosure, the first to fourth embodiments are merely illustrative, and the present disclosure is not limited to the first to fourth embodiments for implementation.

[0169] According to an embodiment of the present disclosure, Figure 7 , Figure 8 , Fig.10 The yellow path in the middle represents the optical path of the optical signal emitted by the fluorescent defect laser module, and the red path represents the optical path of the reflected light reflected by the solid material, and the reflected light includes the target light reflected by each of the M points to be read. According to an embodiment of the present disclosure, Fig. 9The green path represents the propagation path of the light signal emitted by the fluorescent defect laser module, the orange path represents the propagation path of the reflected light reflected by the solid material, and the red path, yellow path, blue path, and gray path are the propagation paths of the split light obtained by the second splitting crystal after splitting the reflected light. The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions, and operations of the systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram may represent a module, a program segment, or a portion of a code, and the above-mentioned module, program segment, or a portion of a code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box may also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each block in the block diagrams or flowcharts, and combinations of blocks in the block diagrams or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0170] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations or combinations are not explicitly described in the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0171] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A method for high-speed information readout based on fluorescent defects in solid materials, characterized in that: The method comprises: Determining a readout parameter group, wherein the readout parameter group is used to perform parallel information reading on N to-be-read points included in the solid material, wherein the to-be-read points have fluorescent defects; Based on the readout parameter group, the fluorescence defects of the N points to be read are stimulated, and the number of photons of the N points to be read is read to obtain at least one fluorescence data, wherein the fluorescence data includes the number of photons corresponding to the M points to be read, the number of photons corresponds to the fluorescence defects of the points to be read, M and N are positive integers, and M is less than or equal to N; Based on at least one piece of fluorescence data and a preset mapping relationship, the to-be-read information stored in each of the N to-be-read points is obtained.

2. The method according to claim 1, characterized in that The read parameter group includes a movement parameter; the movement parameter is used to synchronously move the solid material during the process of reading information from the N points to be read; when the movement process is a rotation process, the movement parameter is a target rotation speed of the solid material; wherein the target rotation speed is determined by: The target rotation speed is determined based on the reading frequency of the fluorescence data.

3. The method according to claim 2, characterized in that The fluorescence data is a fluorescence image captured by a high-speed camera; at least one of the fluorescence data is collected at a different time point; Wherein, the obtaining of the to-be-read information stored in each of the N to-be-read points based on at least one fluorescent data and a preset mapping relationship includes: For each of the fluorescent images, performing matrix transformation on the fluorescent image to obtain a photon number matrix; Determine, according to the reading frequency, the target rotation speed and a preset distance between adjacent points to be read among the N points to be read, a misalignment dimension between fluorescent images at adjacent acquisition time points in at least one of the fluorescent images; Based on the offset dimension and the respective acquisition time of at least one of the fluorescent images, performing offset calculation on the photon number matrices corresponding to the plurality of fluorescent images to obtain the target photon numbers of the N points to be read; For each of the to-be-read points, the to-be-read information stored at the to-be-read point is determined based on the target range to which the target photon number of the to-be-read point belongs, wherein the preset mapping relationship includes a corresponding relationship between the target range and the to-be-read information.

4. The method according to claim 3, characterized in that The step of performing matrix conversion on the fluorescent image to obtain a photon number matrix comprises: Dividing the fluorescent image into grids to obtain a divided fluorescent image, so that the photon numbers of the M points to be read are respectively divided into respective grids; The divided fluorescence image is subjected to matrix transformation to obtain a photon number matrix.

5. The method according to claim 1, characterized in that The to-be-read point includes a plurality of storage layers, and different storage layers are located at different depths of the to-be-read point; when the to-be-read information stored in each of the N to-be-read points is located in at least two to-be-read storage layers, the method further includes: Determine at least two storage layers to be read based on the storage addresses of the information to be read corresponding to each of the N points to be read; Wherein, the readout parameter group further includes acquisition position parameters or fluorescence readout layer channel processing element parameters; the acquisition position parameters and the fluorescence readout layer channel processing element parameters are determined in the following manner: Determine the optical path corresponding to each of the plurality of storage layers based on the optical path corresponding to the surface storage layer of the solid material, the interlayer distance between two adjacent storage layers, and the module properties of the fluorescence collection module, wherein the surface storage layer represents the storage layer located at the uppermost layer of the solid material; Based on the optical paths corresponding to the plurality of storage layers, respectively, determining the target optical paths corresponding to the at least two storage layers to be read; Based on the target optical path lengths respectively corresponding to the at least two storage layers to be read, acquisition position parameters for simultaneously reading the at least two storage layers to be read and fluorescence readout layer channel processing element parameters for simultaneously generating the target optical paths are determined.

6. The method according to claim 5, characterized in that The method further comprises: In response to receiving the fluorescence data, a noise removal operation is performed on the fluorescence data to remove inter-layer noise caused by other storage layers in the plurality of storage layers except the storage layer to be read and intra-layer noise generated by adjacent points to be read in the storage layer to be read.

7. The method according to claim 1, characterized in that The readout parameter group also includes a maximum parallel dimension, a light dot matrix modulation parameter, and a noise filtering parameter; the N points to be read are determined in the following manner: The maximum parallel number is determined based on the collection range of the fluorescence collection module, the excitation power of the fluorescence defect excitation module of the fluorescence collection module, and the module properties of the photoelectric signal conversion module, wherein the fluorescence defect excitation module is used to excite the fluorescence defect of the to-be-read point to make it emit fluorescence; the photoelectric signal conversion module is used to read the number of photons of the to-be-read point; Determine a maximum parallel dimension based on the maximum parallel number; In the case where the unread information corresponding to each of the plurality of candidate to-be-read points is associated with the historical to-be-read information corresponding to each of the plurality of historical to-be-read points, determining a target historical to-be-read point from the plurality of historical to-be-read points; Determine a target candidate to-be-read point from a plurality of candidate to-be-read points based on the target historical to-be-read point and the maximum parallel dimension; Based on the target historical to-be-read points and the target candidate to-be-read points, N to-be-read points are obtained, so that based on the historical to-be-read information of the target candidate to-be-read points, the positional relationship between the to-be-read information of each of the N to-be-read points and the historical to-be-read information of each of the multiple historical to-be-read points is determined.

8. A system for high-speed information readout based on fluorescent defects in solid materials, characterized in that: The system comprises: A fluorescence defect excitation module, used for emitting a light signal, and for transmitting the light signal to a solid material through a lens group, so as to excite N points to be read in the solid material, wherein the points to be read satisfy the maximum parallel dimension in the readout parameter group, the points to be read have fluorescence defects, and different fluorescence defects correspond to different information to be read; A photoelectric signal conversion module, used for receiving reflected light reflected by the solid material, wherein the reflected light includes target light reflected by each of the M points to be read, and the photoelectric signal conversion module is also used for reading the number of photons of the target light reflected by each of the M points to be read to obtain at least one fluorescence data, where M and N are positive integers, and M is less than or equal to N; The processor is used to determine the readout parameter group and to obtain the to-be-read information stored in each of the N to-be-read points based on at least one fluorescence data and a preset mapping relationship, wherein the number of photons corresponds to the fluorescence defect of the to-be-read point.

9. The system according to claim 1, characterized in that: The photoelectric signal conversion module is: a common camera, a complementary metal oxide semiconductor, a two-dimensional fluorescence detection array or a high-speed camera; the readout parameter group also includes a target rotation speed; Wherein, when the photoelectric signal conversion module is the high-speed camera, the system further includes: The rotating device is used for placing the solid material and rotating the solid material based on the target rotation speed.

10. The system according to claim 8, characterized in that There are at least two photoelectric signal conversion modules; the to-be-read point includes multiple storage layers, and different storage layers are located at different depths of the to-be-read point; the readout parameter group also includes acquisition position parameters; In the case where the to-be-read information stored in each of the N to-be-read points is located in at least two to-be-read storage layers, the system further includes: A first light splitting crystal is used to split the reflected light to obtain at least two split light beams, so that each of the photoelectric signal conversion modules receives the corresponding split light beam and reads the number of photons of the target light reflected by each of the M to-be-read points included in the split light beam, wherein the optical paths of at least two of the split light beams are different, and the target optical paths corresponding to at least two of the storage layers to be tested correspond to the optical paths of at least two of the target split light beams one by one; At least two of the photoelectric signal conversion modules are also used for: They are respectively located at acquisition positions that match acquisition position parameters sent by the processor, so as to read the to-be-read information in at least two of the to-be-read storage layers.

11. The system according to claim 8, characterized in that The number of the photoelectric signal conversion modules is at least one; the point to be read includes a plurality of storage layers, and different storage layers are located at different depths of the point to be read; the readout parameter group also includes a fluorescence readout layer channel processing element parameter; In the case where the to-be-read information stored in each of the N to-be-read points is located in at least two to-be-read storage layers, the system further includes: At least one second spectroscopic crystal, each of which is used to split the reflected light to obtain at least two initial spectroscopic lights, and is used to perform optical path compensation on the at least two initial spectroscopic lights respectively to obtain at least two target spectroscopic lights, so that the photoelectric signal conversion module corresponding to the at least two target spectroscopic lights can simultaneously read the number of photons of the target light reflected by the M points to be read respectively included in the at least two target spectroscopic lights, and obtain the number of photons of the target light reflected by the M points to be read respectively included in the at least two storage layers to be read. The target optical paths corresponding to the at least two storage layers to be tested correspond to the optical paths of the at least two target split beams, and the shape of the second splitting crystal matches the parameters of the channel processing element of the fluorescence readout layer.

12. The system according to claim 8, characterized in that The readout parameter group also includes: light dot matrix modulation parameters and noise filtering parameters; the system also includes: A first modulator is placed within the optical path of the optical signal, and is used to modulate the optical signal into an optical dot matrix matching the maximum matrix dimension based on the optical dot matrix modulation parameters; A second modulator is placed within the optical path of the reflected light, and the second modulator is used to perform denoising on the reflected light based on the noise filtering parameters.

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