CN114924423A - Super-resolution optical storage area array writing optical system and information recording method - Google Patents
Super-resolution optical storage area array writing optical system and information recording method Download PDFInfo
- Publication number
- CN114924423A CN114924423A CN202210593184.1A CN202210593184A CN114924423A CN 114924423 A CN114924423 A CN 114924423A CN 202210593184 A CN202210593184 A CN 202210593184A CN 114924423 A CN114924423 A CN 114924423A
- Authority
- CN
- China
- Prior art keywords
- light
- optical system
- light spot
- spot
- super
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005284 excitation Effects 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 47
- 230000001629 suppression Effects 0.000 claims abstract description 46
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- 230000002401 inhibitory effect Effects 0.000 claims description 13
- 230000000704 physical effect Effects 0.000 claims description 12
- 230000005764 inhibitory process Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/58—Optics for apodization or superresolution; Optical synthetic aperture systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/46—Systems using spatial filters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
The invention discloses a super-resolution optical storage area array writing optical system and an information recording method, wherein the system comprises: the device comprises an excitation light spot forming system, a suppression light spot forming system, a light spot light path adjusting system, a first spatial light adjuster and a second spatial light adjuster, wherein the excitation light spot forming system is used for forming an excitation light spot beam, the suppression light spot forming system is used for forming a suppression hollow light spot beam, the light spot light path adjusting system is used for converging the excitation light spot beam and the suppression hollow light spot beam on an information recording material, and the first spatial light adjuster and the second spatial light adjuster are included; the first spatial light adjuster is arranged between the laser light source of the excitation light spot forming system and the collimating optical system; the second spatial light adjuster is disposed between the laser light source of the suppression spot forming system and the collimating optical system. The super-resolution optical storage area array writing optical system disclosed by the invention can realize that a plurality of information recording points are formed on an information recording material at one time, so that a plurality of information can be written at one time, and the storage speed is improved.
Description
Technical Field
The invention relates to the technical field of optical storage, in particular to a super-resolution optical storage area array writing optical system and an information recording method.
Background
In the information age, the rapid growth of data is a big feature of the current society. The storage, analysis, retrieval and dissemination of large amounts of data has a pressing need for high density, large capacity storage media and management systems. With the digitization of information resources and the rapid increase of information volume, the requirements for storage density and access rate of memories are continuously increasing.
In the optical storage field, the density of data to be stored is inversely proportional to the size of a recording spot, and the size of a recording spot is proportional to the size of a focal spot of a writing laser. The size of the optical imaging spot is limited by the diffraction limit, the method for reducing the spot size is to reduce the wavelength of light or increase the numerical aperture of the objective lens, and at the present stage, the limit has been reached by various methods, in order to break through the diffraction limit, a two-beam super-resolution scheme is provided, as shown in fig. 7, which includes an excitation spot forming system 1, a suppression spot forming system 2 and a spot light path adjusting system 3, the excitation spot forming system 1 includes a laser light source 10, a collimating optical system 11, 1/2 wavelength plates 12 and 1/4 wavelength plates 13, the suppression spot forming system 2 includes a laser light source 20, a collimating optical system 21, a 1/2 wavelength plate 22, a 1/4 wavelength plate 23 and a phase plate (VPP)24, the spot light path adjusting system 3 includes a reflecting mirror 30, a wavelength selective reflecting mirror 31 and an objective lens 32, the principle is as follows: the double-beam super-resolution technology is characterized in that one laser beam is used as a writing beam, the other laser beam is used as a suppression beam, after the suppression beam exits, the energy of the middle part of the suppression beam is dispersed to the periphery through a Vortex Phase Plate (VPP) to form a middle hollow beam, and the two beams are combined into one beam through a dichroic filter. When the light beam is focused on a special material, the original writing light beam can generate a specific physical and chemical reaction with the material, but the reaction of the writing light beam and the material can be inhibited by inhibiting the action of the light beam on the material, and the inhibiting light beam is hollow, so that the central part of the writing light beam can keep the physical and chemical reaction with the material, and the diameter of the central part of the writing light beam is much smaller than the original diffraction limit spot size, and the effect of improving the resolution is achieved.
The double-beam super-resolution optical storage technology solves the problem of optical storage density, but the traditional storage and reading of one information point by one information point does not solve the problem of optical storage speed.
Disclosure of Invention
The invention provides a super-resolution optical storage area array writing optical system aiming at the technical problems.
The technical means adopted by the invention are as follows:
a super-resolution optical storage area array writing optical system, comprising: the device comprises an excitation light spot forming system, a suppression light spot forming system, a light spot light path adjusting system, a first spatial light adjuster and a second spatial light adjuster, wherein the excitation light spot forming system is used for forming an excitation light spot beam, the suppression light spot forming system is used for forming a suppression hollow light spot beam, the light spot light path adjusting system is used for converging the excitation light spot beam and the suppression hollow light spot beam on an information recording material, and the first spatial light adjuster and the second spatial light adjuster are included;
the first spatial light adjuster is arranged between a laser light source of the excitation light spot forming system and the collimating optical system;
the second spatial light adjuster is disposed between the laser light source of the spot formation suppressing system and the collimating optical system.
Further, the device also comprises a first collimation and light-equalizing system, a first total internal reflection prism, a second collimation and light-equalizing system and a second total internal reflection prism;
the first collimation and light-equalizing system and the first total internal reflection prism are arranged between a laser light source of the excitation light spot forming system and the first spatial light adjuster;
the second collimation light equalizing system and the second total internal reflection prism are arranged between the laser light source of the suppression light spot forming system and the second spatial light adjuster.
Further, the excitation spot forming system further comprises a first 1/2 wavelength plate and a first 1/4 wavelength plate;
the first 1/2 wavelength plate and the first 1/4 wavelength plate are sequentially arranged between the collimating optical system of the excitation spot forming system and the spot light path adjusting system;
the suppression spot formation system further comprises a second 1/2 wavelength plate, a second 1/4 wavelength plate, and a vortex phase plate;
the second 1/2 wavelength plate, the second 1/4 wavelength plate and the vortex phase plate are sequentially arranged between the collimation optical system of the spot formation restraining system and the spot light path adjusting system.
Further, the collimation degree of the light source of the collimation optical system of the spot formation suppression system is less than +/-1 degree.
Further, the collimating optical system of the spot formation suppressing system adopts a long-focus collimating system.
Further, the vortex phase plate is positioned at a back focus of a collimating optical system of the suppressed light spot forming system;
or a diaphragm is arranged between the collimating optical system of the light spot formation inhibiting system and the vortex phase plate.
Further, the collimating optical system of the excitation light spot forming system adopts a long-focus collimating system.
Furthermore, the material of the information recording material is a material which generates different degrees of physical property change due to different laser irradiation time.
Further, the light spot light path adjusting system comprises a reflecting mirror, a wavelength selective reflecting mirror and an objective lens;
the reflector is used for enabling the hollow facula-inhibiting light beam to be incident into the wavelength selective reflector;
the wavelength selective reflector is used for synthesizing the incident inhibition hollow light spot light beam and the incident excitation light spot light beam to form a synthesized light beam and irradiating the synthesized light beam into the objective lens;
and the objective lens is used for converging the incident composite light beam and enabling the composite light beam to be incident on an information recording material.
The invention discloses a method for recording information by adopting a super-resolution optical storage area array writing optical system, wherein the material of an information recording material is a material which generates different degrees of physical property change due to different laser irradiation time, and the turning time of a first spatial light regulator and a second spatial light regulator is controlled, so that the number of laser pulses incident on the information recording material is different, and different data values are recorded on the information recording material.
Compared with the prior art, the super-resolution optical storage area array writing optical system disclosed by the invention has the following beneficial effects: the spatial light modulator is arranged in the excitation light spot forming system and the inhibition light spot forming system, and can be opened and closed for each small light source, so that a plurality of information recording points can be formed on the information recording material at one time, a plurality of information can be written at one time, and the storage speed is improved.
Drawings
FIG. 1 is a block diagram of a super-resolution optical storage area array writing optical system according to the present disclosure;
FIG. 2 is a structural diagram of a system for suppressing the formation of light spots in a super-resolution optical storage area array writing optical system according to the present invention;
FIG. 3 is a structural diagram of an excitation light spot forming system of the super-resolution optical storage area array writing optical system disclosed by the invention;
FIG. 4 is a diagram of a first embodiment of a speckle suppression system for a super-resolution optical storage area array writing optical system according to the present disclosure;
FIG. 5 is a diagram of a second embodiment of a speckle reduction system for a super-resolution optical storage area array writing optical system according to the present disclosure;
FIG. 6 is a timing diagram of the spatial light modulator and the laser source when different data values are recorded in the super-resolution optical storage area array writing optical system according to the present invention;
fig. 7 is a structural diagram of a related art dual beam super-resolution optical system.
In the figure: 1. an excitation spot forming system, 10, a laser light source of the excitation spot forming system, 11, a collimating optical system of the excitation spot forming system, 12, a first 1/2 wavelength plate, 13, a first 1/4 wavelength plate, 2, a suppression spot forming system, 20, a laser light source of the suppression spot forming system, 21, a collimating optical system of the suppression spot forming system, 22, a second 1/2 wavelength plate, 23, a second 1/4 wavelength plate, 24, a phase plate, 25, the device comprises a diaphragm, 3, a light spot light path adjusting system, 30, a reflector, 31, a wavelength selecting reflector, 32, an objective lens, 40, a first spatial light adjuster, 41, a second spatial light adjuster, 50, a first collimation and light equalizing system, 51, a first total internal reflection prism, 52, a second collimation and light equalizing system, 53, a second total internal reflection prism, 6 and an information recording material.
Detailed Description
Fig. 1 shows a super-resolution optical storage area array writing optical system disclosed in the present invention, which includes: the device comprises an excitation light spot forming system 1 for forming an excitation light spot beam, a suppression light spot forming system 2 for forming a suppression hollow light spot beam, a light spot light path adjusting system 3 for converging the excitation light spot beam and the suppression hollow light spot beam on an information recording material, a first spatial light adjuster 40 and a second spatial light adjuster 41;
the first spatial light adjuster 40 is arranged between the laser light source 10 of the excitation spot forming system and the collimating optical system 11 of the excitation spot forming system;
the second spatial light adjuster 41 is provided between the laser light source 20 of the suppression spot forming system and the collimating optical system 21 of the suppression spot forming system.
Specifically, as shown in fig. 3, the excitation spot forming system 1 includes a laser light source 10 of the excitation spot forming system and a collimating optical system 11 of the excitation spot forming system, and further includes a first 1/2 wavelength plate and a first 1/4 wavelength plate; the first 1/2 wavelength plate and the first 1/4 wavelength plate are sequentially arranged between the collimation optical system of the excitation light spot forming system and the light spot light path adjusting system;
as shown in fig. 2, the suppression spot forming system 2 includes a laser light source 20 of the suppression spot forming system and a collimating optical system 21 of the suppression spot forming system, and further includes a second 1/2 wavelength plate 22, a second 1/4 wavelength plate 23, and a vortex phase plate 24; the second 1/2 wave plate 22, the second 1/4 wave plate 23 and the vortex phase plate 24 are sequentially arranged between the collimation optical system 21 of the spot formation suppression system and the spot light path adjustment system 3;
the light spot light path adjusting system comprises a reflector 30, a wavelength selection reflector 31 and an objective lens 32; the reflector 30 is used for enabling the hollow facula-inhibiting light beam to be incident into the wavelength selective reflector; the wavelength selective reflector 31 is configured to synthesize the incident hollow light spot suppression beam and the incident excitation light spot beam to form a synthesized beam, and irradiate the synthesized beam into the objective lens; the objective lens 32 is configured to converge the incident composite light beam and to irradiate the information recording material.
The laser light source 10 of the excitation facula forming system is used for generating laser beams for generating excitation facula, the collimation optical system 11 of the excitation facula forming system is used for collimating the laser beams to form parallel beams with set width, the first 1/2 wavelength plate and the first 1/4 wavelength plate are used for modulating the parallel beams into circularly polarized beams, the circularly polarized beams are modulated by the wavelength selective reflector 31 and then enter the objective lens 32, the laser light source 20 of the inhibition facula forming system is used for generating laser beams for generating inhibition hollow facula beams, the collimation optical system 21 of the inhibition facula forming system is used for collimating the laser beams to form set parallel beams, the second 1/2 wavelength plate 22 and the second 1/4 wavelength plate 23 are used for forming the parallel beams into circularly polarized beams, and the circularly polarized beams form the hollow beams through the vortex phase plate 24, the hollow light beam enters an objective lens 32 after being modulated by a reflector 30 and a wavelength selection reflector 31, the objective lens 32 synthesizes a suppression hollow light spot light beam and an excitation light spot light beam into a synthesized light beam and then emits the synthesized light beam to an information recording material 6 for information recording, in the invention, a first spatial light adjuster 40 is arranged between a laser light source 10 of an excitation light spot forming system and a collimation optical system 11 of the excitation light spot forming system, the first spatial light adjuster can divide the laser light beam generated by the laser light source into a plurality of independent small laser light sources, correspondingly, a second spatial light adjuster 41 is arranged between the laser light source 20 of the suppression light spot forming system and the collimation optical system 21 of the suppression light spot forming system, the second spatial light adjuster 41 can divide the suppression light beam generated by the suppression hollow light spot light source into a plurality of independent small laser light sources, through modulating spatial light modulator, can be to opening and shutting of every little light source, and then realize once forming a plurality of information recording points on information recording material, thereby can write into a plurality of information once, storage speed has been improved, in this embodiment, the DMD spatial light modulator that spatial light modulator adopted, it can be with the light beam segmentation of incident into m n independent little light sources, namely through modulating this spatial light modulator, can control opening and shutting of every light source of m n light sources, realize once writing into m n information, promote m n times with storage speed, storage speed has greatly improved storage speed.
Further, the system also comprises a first collimation and light-equalizing system 50, a first total internal reflection prism 51, a second collimation and light-equalizing system 52 and a second total internal reflection prism 53;
the first collimating and light-equalizing system 50 and the first tir prism 51 are disposed between the laser light source 10 of the excitation spot forming system and the first spatial light adjuster 40;
the first collimation and light-equalizing system 50 is used for forming light beams generated by the excitation light source into a surface light source, and the first total internal reflection prism 51 is used for modulating the surface light source into illumination light corresponding to the spatial light modulator;
the second collimation and light-equalizing system 52 and the second total internal reflection prism 53 are arranged between the laser light source 20 of the suppression spot forming system and the second spatial light adjuster 41;
the second collimating and light-equalizing system 52 is used for forming the light beams generated by the suppressing light source into a surface light source, and the second total internal reflection prism 53 is used for modulating the surface light source into illumination light corresponding to the spatial light modulator.
The invention discloses an optical device vortex phase plate in a suppression light path of a super-resolution optical storage area array writing optical system, which has two unique requirements on incident light: 1. the parallelism of the incident light is within +/-1 degree; 2. the beam is symmetric about the center of the vortex phase plate, and the formed hollow is at the center of the light spot.
In order to meet the two requirements, the invention adopts the following technical means: the collimating optical system 11 of the light spot formation suppressing system adopts a long-focus collimating system, so that the parallelism of a plurality of independent light beams is within ± 1 degree.
Further, as shown in fig. 4, the vortex phase plate 24 is located at the back focus of the collimating optical system 21 of the suppressed spot forming system;
or as shown in fig. 5, a diaphragm 25 is arranged between the collimating optical system 21 of the speckle suppression system and the vortex phase plate 24 to improve the central symmetry accuracy of each light source beam with the vortex phase plate. Preferably, the lower edge of the light beam of the uppermost light source in the m × n light sources at the vortex phase plate is the lower edge of the diaphragm, and the upper edge of the light beam of the lowermost light source in the m × n light sources at the vortex phase plate is the upper edge of the diaphragm, that is, the arrangement of the diaphragm improves the central symmetry precision of each light beam of the light sources with the vortex phase plate, and meanwhile, the position relationship between the m × n light sources and the vortex phase plate reduces the blocking of the light beam by the diaphragm, so that the energy utilization is maximized.
In the application, a long-focus collimation system is adopted as the collimation optical system 11 of the light spot formation inhibiting system, and the vortex phase plate 24 is positioned at the back focus of the collimation optical system 21 of the light spot formation inhibiting system; or a diaphragm 25 is arranged between the collimating optical system 21 of the light spot formation inhibiting system and the vortex phase plate 24, so that the parallelism of a plurality of independent light beams is within +/-1 degree, and each light source of a plurality of light sources is centrally symmetrical with the vortex phase plate when passing through the vortex phase plate, so that the formed hollow light beam is positioned at the center of the light spot, and the accuracy of information recording is ensured.
The technical scheme of the invention adopts a long-focus collimation system, wherein the focal length is more than 200mm and is long focus, the focal length of a collimation optical system needs to be very large, the invention takes a 0.7-inch spatial light modulator DMD as an example, the beam aperture angle corresponding to each pixel point is about +/-12 degrees, the light source under the condition is collimated to +/-1 degree, the focal length of the collimation optical system is about 500mm, the clear aperture is about 230mm, and subsequent vortex phase plates, objective lenses and other devices also need similar apertures. Thus, the light beam of each light source is almost centrosymmetric to the vortex phase plate, the incidence angle reaches within +/-1 degree, and the imaging light path of the spatial modulator is shown in figure 2.
Correspondingly, the collimating optical system 11 of the excitation light spot forming system of the present application adopts a long-focus collimating system so as to correspond to the suppression light spot forming system, and the imaging light path of the spatial modulator in the excitation light spot forming system is as shown in fig. 3.
Further, the material of the information recording material 6 is a material having a physical property change of different degrees depending on the irradiation time of the laser beam; the physical property change may be a change in transmittance or reflectance, and the material used may be changed in physical properties to different degrees depending on the irradiation time of the laser beam, so that multi-value recording can be realized. The specific method is to control the turnover time of the DMD to match with a pulse laser, so that the number of laser pulses received by a recording material is different when different data values are recorded, and the recording of different data values is realized. For example, as shown in fig. 6, taking 2-bit recording data (00, 01, 10, 11) as an example, the 2-bit recording data (00, 01, 10, 11) is adjusted to have 3 pulses of light emission time of the laser corresponding to 1, 2, and 3 laser pulses in T1, T2, and T3 periods of the DMD for each DMD flip period T0 equal to 0, T1, T2, and T3. The super-resolution optical storage area array writing optical system can realize the recording of different data values by matching with information recording materials with different physical property change performances to different degrees caused by different laser irradiation time, and compared with the existing optical storage technology and storage media, the system can only record data binarily, namely 0 and 1, thereby greatly improving the capacity of optical storage data.
The invention discloses a method for recording information by adopting a super-resolution optical storage area array writing optical system, wherein the material of an information recording material is a material which generates different degrees of physical property change due to different laser irradiation time, and the turning time of a first spatial light regulator and a second spatial light regulator is controlled, so that the number of laser pulses incident on the information recording material is different, and different data values are recorded on the information recording material.
Specifically, the number of pulses of laser light incident on the information recording material is changed by controlling the turning time of the first spatial light modulator and the second spatial light modulator, and the information recording material is made of a material with different physical property changes due to different laser irradiation times, so that the physical property changes with different degrees are generated, and the physical property changes with different degrees can represent different data values, thereby realizing the recording of different data values.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A super-resolution optical storage area array writing optical system, comprising: an excitation light spot forming system for forming an excitation light spot beam, a suppression light spot forming system for forming a suppression hollow light spot beam, and a light spot light path adjusting system for converging the excitation light spot beam and the suppression hollow light spot beam onto an information recording material, characterized in that: further comprising a first spatial light adjuster and a second spatial light adjuster;
the first spatial light adjuster is arranged between a laser light source of the excitation light spot forming system and the collimating optical system;
the second spatial light adjuster is arranged between the laser light source of the suppression spot forming system and the collimating optical system.
2. The super-resolution optical storage area array writing optical system according to claim 1, wherein: the device also comprises a first collimation and light-equalizing system, a first total internal reflection prism, a second collimation and light-equalizing system and a second total internal reflection prism;
the first collimation and light-equalizing system and the first total internal reflection prism are arranged between a laser light source of the excitation light spot forming system and the first spatial light adjuster;
the second collimation light equalizing system and the second total internal reflection prism are arranged between the laser light source of the suppression light spot forming system and the second spatial light adjuster.
3. The super-resolution optical storage area array writing optical system according to claim 1, wherein: the excitation spot forming system further comprises a first 1/2 wavelength plate and a first 1/4 wavelength plate;
the first 1/2 wavelength plate and the first 1/4 wavelength plate are sequentially arranged between the collimation optical system of the excitation light spot forming system and the light spot light path adjusting system;
the suppression spot formation system further comprises a second 1/2 wavelength plate, a second 1/4 wavelength plate, and a vortex phase plate;
the second 1/2 wavelength plate, the second 1/4 wavelength plate and the vortex phase plate are sequentially arranged between the collimation optical system of the spot formation restraining system and the spot light path adjusting system.
4. The super-resolution optical storage area array writing optical system according to claim 3, wherein: the light source collimation degree of the collimation optical system of the light spot forming inhibiting system is less than +/-1 degree.
5. The super-resolution optical storage area array writing optical system according to claim 4, wherein: the collimation optical system of the light spot formation inhibiting system adopts a long-focus collimation system.
6. The super-resolution optical storage area array writing optical system according to any one of claims 3 to 5, wherein: the vortex phase plate is positioned at a back focus of a collimation optical system of the facula formation inhibiting system;
or a diaphragm is arranged between the collimating optical system of the light spot formation inhibiting system and the vortex phase plate.
7. The super-resolution optical storage area array writing optical system according to claim 3, wherein: and the collimation optical system of the excitation light spot forming system adopts a long-focus collimation system.
8. The super-resolution optical storage area array writing optical system according to claim 1, wherein: the material of the information recording material is a material which generates different degrees of physical property change due to different laser irradiation time.
9. The super-resolution optical storage area array writing optical system according to claim 1, wherein: the light spot light path adjusting system comprises a reflector, a wavelength selection reflector and an objective lens;
the reflector is used for enabling the hollow facula-inhibiting light beam to be incident into the wavelength selective reflector;
the wavelength selective reflector is used for synthesizing the incident inhibition hollow light spot light beam and the excitation light spot light beam to form a synthesized light beam and irradiating the synthesized light beam into the objective lens;
and the objective lens is used for converging the incident composite light beam and enabling the light beam to be incident on an information recording material.
10. A method for recording information by using the super-resolution optical storage area array writing optical system of any one of claims 1 to 9, wherein the material of the information recording material is a material with different physical property changes caused by different irradiation times of laser light, and the method comprises the following steps: the turning times of the first spatial light adjuster and the second spatial light adjuster are controlled to make the number of laser pulses incident on the information recording material different, thereby realizing recording of different data values on the information recording material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210593184.1A CN114924423A (en) | 2022-05-27 | 2022-05-27 | Super-resolution optical storage area array writing optical system and information recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210593184.1A CN114924423A (en) | 2022-05-27 | 2022-05-27 | Super-resolution optical storage area array writing optical system and information recording method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114924423A true CN114924423A (en) | 2022-08-19 |
Family
ID=82810794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210593184.1A Pending CN114924423A (en) | 2022-05-27 | 2022-05-27 | Super-resolution optical storage area array writing optical system and information recording method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114924423A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105993045A (en) * | 2013-11-28 | 2016-10-05 | 斯威本科技大学 | Method and system for optical data storage |
| CN108802988A (en) * | 2018-06-07 | 2018-11-13 | 上海大学 | Super-resolution optical micro imaging system and its adjusting method |
| CN114280802A (en) * | 2021-12-28 | 2022-04-05 | 中国华录集团有限公司 | Single-light-source super-resolution optical storage optical system |
-
2022
- 2022-05-27 CN CN202210593184.1A patent/CN114924423A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105993045A (en) * | 2013-11-28 | 2016-10-05 | 斯威本科技大学 | Method and system for optical data storage |
| CN108802988A (en) * | 2018-06-07 | 2018-11-13 | 上海大学 | Super-resolution optical micro imaging system and its adjusting method |
| CN114280802A (en) * | 2021-12-28 | 2022-04-05 | 中国华录集团有限公司 | Single-light-source super-resolution optical storage optical system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7593304B2 (en) | Apparatus and method for recording and reproducing hologram, and spatial light modulator therefor | |
| US20050176947A1 (en) | Optical recording apparatus using one-dimensional diffractive light modulator | |
| US7200097B2 (en) | Parallel recording and reading of diffractive memory using multiple object beams | |
| CN101539753B (en) | Optical reproduction device, optical recording/reproduction device, and optical reproduction method | |
| US8351316B2 (en) | Beam shaper for an optical storage system | |
| US8289597B2 (en) | Apparatus for reading from and/or writing to holographic storage media | |
| US7236442B2 (en) | Holographic recording/reproducing apparatus and reproducing apparatus for holographically recorded information | |
| JP2006154163A (en) | Hologram recording device, hologram reproducing apparatus, hologram recording method, and hologram reproducing method | |
| CN1307622C (en) | Holographic recording and reconstructing apparatus and mask for use therein | |
| CN114280802A (en) | Single-light-source super-resolution optical storage optical system | |
| US7180844B2 (en) | Holographic disc recording system | |
| CN114924423A (en) | Super-resolution optical storage area array writing optical system and information recording method | |
| JP4043428B2 (en) | Ring prism of holographic ROM system | |
| CN103578500A (en) | Optical information recording/reproducing apparatus | |
| US7428206B2 (en) | Holographic information recording apparatus | |
| JP2000105925A (en) | Holographic data storing/retrieving device having spherical recording medium | |
| CN109524029B (en) | Multi-layer optical disk storage device and method based on double-beam super-resolution | |
| KR100571840B1 (en) | An apparatus for recording/reproducing holographic information | |
| US20040218240A1 (en) | Compact holographic data storage system | |
| KR100263492B1 (en) | Device for recording a hologram data | |
| KR100247403B1 (en) | Device for multiplexing an angular of a hologram data storage | |
| JP2005352439A (en) | Optical recording apparatus using one-dimensional diffractive light modulator | |
| US20060140102A1 (en) | System and method for parallel selection and retrieval of data stored in a holographic data storage medium | |
| KR100681612B1 (en) | Pick-up system having function of angle multiplex and rotation multiplex in a hdds | |
| US20090015890A1 (en) | Hologram element, hologram element fabricating apparatus, hologram element fabricating method, and hologram reconstructing apparatus used for reconstructing information |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |