26results about "Recording involving layer ablation" patented technology

The present invention relates to a compact writing and reading head for hyper-speed data recording on ceramic material.

A data carrier comprising a ceramic substrate having a first and an opposite second surface and a thickness of at most 500 µm, wherein the first surface of the substrate has a plurality of laser-ablated depressions encoding information, each depression having a depth of at most 1 µm.

A data carrier capable of storing information for a long period of time, capable of increasing the capacity of stored information, and a method and system for reading out the information are provided. [Solution] The information is combined by acquiring and processing an image of the layer of photoluminescent material through the surface layer of the data carrier having information-encoded recesses in a system including a structured illumination microscope (SIM) or saturated structured illumination microscope (SSIM) device. The photoluminescent material layer is provided on the sample support of the device or on one or both sides of the data carrier. The information-encoded recesses are formed in a coating layer coated on the ceramic substrate of the data carrier, in a photoluminescent material layer provided on the substrate, or in a coating layer coated on the photoluminescent material layer.

The invention relates to an optical fiber laser which comprises a seed source used for generating initial pulse laser, a coupler used for dividing the initial pulse laser into two paths of pulse laser, a first acousto-optic modulator used for opening and closing the light path of one path of pulse laser divided by the coupler, a second acousto-optic modulator used for opening and closing the light path of the pulse laser, and a third acousto-optic modulator used for opening and closing the light path of the pulse laser, the optical path of the pulse laser is a reference optical path, and the control unit is used for controlling on or off of the first acoustic optical modulator and on or off of the second acoustic optical modulator and controlling on or off of the first acoustic optical modulator and on or off of the second acoustic optical modulator. Therefore, the laser pulse frequency when the two paths of light are combined and output is consistent with the pulse frequency of the initial pulse laser generated by the seed source. The invention further provides a multi-dimensional optical storage device and a storage performance improving method of the multi-dimensional optical storage device. According to the invention, high-speed pulse switching can be realized, and high-frequency pulse optical signal output in any arrangement can be realized according to requirements.

This application relates to the field of optical storage technology and discloses a system and method for reading and writing data. The method can be used to increase the read / write speed of optical storage without increasing the rotation speed of the optical storage medium. The system includes an optical deflector and a read / write optical head. The optical deflector is configured to sequentially deflect a first optical signal through multiple angles to obtain multiple second optical signals. The read / write optical head is configured to receive the multiple second optical signals and separately focus the multiple second optical signals onto the optical storage medium to read and write multiple data points.

The invention belongs to the technical field of optical discs, and particularly discloses a writing device and equipment for a single-wavelength single-servo-layer multi-recording-layer optical disc. Comprises: a first light source for generating a recording beam; the second light source is used for generating a servo light beam; the first beam splitting module is arranged at the position where the propagation directions of the recording light beam and the servo light beam intersect, and is used for transmitting the recording light beam and reflecting the servo light beam and the reflected light of the servo layer; the photoelectric detector is used for detecting a reflected light signal of the servo layer and controlling the torquer to drive the second lens to move according to the change of the reflected light signal, so that the recording light beam and the servo light beam are always focused on the data layer and the servo layer respectively; the wavelength of the recording light beam emitted by the first light source is the same as that of the servo light beam emitted by the second light source. According to the invention, data servo / write-in is realized by using the single wavelength, only the single wavelength needs to be subjected to design optimization, and the optical head has significant advantages in reducing the size of the optical head and improving the performance.

The invention discloses a laser direct writing device and method for rapid parallel processing based on multiple rotary channels and application. The device comprises a first light source shaping module, a beam splitting module, a movable mask pattern module, a resolution adjustable module and a focusing module. A pre-processed second array light beam with coding information is formed through the fixed mask pattern plate; and the multi-array light beam diaphragm is rotated to control the exposure time of the second array light beam or the array combined light beam, the flexible adjustment of the resolution of the second array light beam or the array combined light beam is realized in combination with the adjustment of the distance between the 4f lens groups, and finally, the rapid parallel processing of multiple channels is realized. The device and the method are used for rapid laser direct writing with any structure and adjustable resolution, high-stability and high-resolution three-dimensional laser processing is realized, and the device and the method have wide application scenes.

This application relates to the field of optical storage technologies, and discloses a data read / write system and method. The method can be used to improve a read / write speed of optical storage without increasing a rotational speed of an optical storage medium. The system includes an optical deflector and a read / write optical head. The optical deflector is configured to sequentially deflect a first optical signal by a plurality of angles, to obtain a plurality of second optical signals. The read / write optical head is configured to receive the plurality of second optical signals, and separately focus the plurality of second optical signals on the optical storage medium, to implement reading / writing of a plurality of data points.

The present invention relates to a method of reading out a data carrier comprising a ceramic substrate having first and second opposite surfaces and a thickness of at most 500 µm, wherein the first surface of the substrate comprises a plurality of laser-ablated recesses encoding information, each recess having a depth of at most 1 µm; the method comprising the following steps: illuminating the data carrier with light of a first wavelength, detecting light transmitted through the data carrier and / or reflected by the data carrier, and analyzing the detected light in order to decode the information encoded in the recesses of the data carrier.

The present invention relates to a method for recording data on or in a layer of a ceramic material and to a device for recording data on or in a layer of a ceramic material.

The present invention relates to a data carrier comprising a plastics substrate having first and second opposite surfaces and a thickness of at most 500 µm, wherein the first surface of the substrate is coated with a first coating, the material of the first coating being different from the material of the substrate, wherein the first coating comprises a plurality of laser-ablated recesses encoding information, and wherein the first coating comprises one or a combination of the following materials: a metal nitride, a metal carbide, a metal boride, a metal silicide.

The present invention relates to a compact writing and reading head for hyper-speed data recording on ceramic material.

The present invention relates to an information storage medium and a method for long-term storage of information.

Device for recording data in a layer of the ceramic material (1), the device comprising: a laser source (2) comprising a picosecond laser or a femtosecond laser; a digital micromirror device (3) that can emit multiple laser beams (4); a collimation optic for focusing the laser light emitted from the laser source onto the digital micromirror device (3); a substrate holder (6) for mounting a substrate (7); and a focusing optic (8) suitable for focusing each of the multiple laser beams (4) emitted by the digital micromirror device (3) onto a substrate (7) mounted on the substrate holder (6); wherein the fluence of each of the multiple laser beams (4) emitted by the digital micromirror device (3) is greater than 100 mJ / cm 2 is.

The present invention relates to an information storage medium and a method for long-term storage of information.

The present invention relates to a method for recording data in a layer of a ceramic material and to a device for recording and reading data in a layer of a ceramic material.

The invention relates to a method for recording data in a layer of ceramic material and to a device for recording data in a layer of ceramic material.

The present invention relates to a method for recording data in a layer of a ceramic material and to a device for recording data in a layer of a ceramic material.

The invention relates to a compact read-write head for superspeed data recording on a ceramic material.

The present application discloses a data reading and writing system and method, which relates to the field of optical storage technology. The method can improve the reading and writing speed of optical storage without increasing the rotation speed of the optical storage medium. The system includes an optical deflector and a read-write optical head. The optical deflector is used to deflect a first optical signal at multiple angles in sequence to obtain multiple second optical signals. The read-write optical head is used to receive the multiple second optical signals and focus the multiple second optical signals on the optical storage medium respectively to realize the reading and writing of multiple data points.

The present invention relates to compact write and read heads for ultra-high speed data recording in ceramic materials.