A method and device for writing/reading out double-beam super-resolution optical data
An optical data and super-resolution technology, applied in digital memory information, information storage, static memory, etc., can solve the problem of inability to distinguish between the recording point or the data readout of two recording points, and achieve the purpose of increasing storage capacity and increasing density. Effect
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Embodiment 1
[0094] Taking the 10×10 data dot matrix format as an example, if the above-mentioned data dot matrix is written using the direct writing method of the present invention, it will be completed in 100 steps, and a single data point will be written by a single double beam. According to the distribution of the data dot matrix, one write 100 data points, after 100 steps are written, the above data lattice will be generated. The direct write method is suitable for the case where the data point array is small, and the projection method is suitable for writing a three-dimensional large data array.
Embodiment 2
[0096] refer to Figure 10 , taking the 100000×100000 data lattice format as an example, if using the projection method of the present invention to write a 100×100000×100000 data lattice, it will be completed in 100 steps. After 100 steps are written, it is equivalent to the original 100000 In the data lattice format of ×100000, 9 points are nested between two adjacent points on the two dimensions of the plane. Finally, the center-to-center distance between two adjacent points is ten times that of a single 100000×100000 data lattice. one-third.
[0097] Through the above-mentioned nested scan writing method, the center-to-center distance between two adjacent points can be doubled, and the data writing density can be further increased on the basis of increasing the data writing speed.
[0098] In order to realize nested scanning and writing, the storage medium can be placed on a translation platform with a moving function. When using this method for optical recording, it can ...
Embodiment 3
[0100] If a 100*100000*100000 data dot matrix is read out, the nested scanning method described in embodiment 2 can also be used, by making the scanning distance of each step equal to the middle distance of all points in the 100*100000*100000 data dot matrix 100 nanometers, 100 steps are used to complete the reading. During the readout process, the light intensity value corresponding to each 100000×100000 data lattice is read out once in one step.
[0101] It is also possible to complete the reading with 100×100 steps. The principle is that by making the scanning distance of each step less than 100 nanometers of the center distance of all points in the 100×100000×100000 data lattice, the distinction between two adjacent points depends on the change of light intensity. , the light intensity at the data point is strong, and there is no light intensity at no data point. For two adjacent points, a line with a central light intensity of zero and a fluorescent light intensity peak ...
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