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Fluorescent dark-state optical disc information reading and writing methods and devices based on nano photoetching

A technology of nano-lithography and information writing, which is applied in the field of optics and can solve problems hindering the development of optical disc technology

Active Publication Date: 2020-07-28
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For optical disc technology, the limitation of storage capacity seriously hinders the development of optical disc technology.

Method used

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  • Fluorescent dark-state optical disc information reading and writing methods and devices based on nano photoetching
  • Fluorescent dark-state optical disc information reading and writing methods and devices based on nano photoetching
  • Fluorescent dark-state optical disc information reading and writing methods and devices based on nano photoetching

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Embodiment Construction

[0055] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0056]It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compon...

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Abstract

The invention provides optical disc information reading and writing methods and devices based on nano photoetching, and the writing method comprises: carrying out the writing of the storage information of an ultrahigh-density optical disc through a nano photoetching method, carrying out information storage by adopting a fluorescent dark state method, and achieving multi-layer optical disc information inscribing storage by utilizing a two-photon absorption characteristic. The reading method comprises: reading optical disc information by a super-resolution digital information reading method; byadopting a 'confocal chromatography' reading method, multilayer storage information reading of the optical disc can be realized. According to the invention, the size and spacing of the information recording points can be reduced, the stable and long-term storage of the ultra-high density information of the optical disc can be realized, and the effective and high-speed extraction of the storage information of the ultra-high density optical disc can be realized.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a method and device for reading and writing optical disc information based on nano-lithography. Background technique [0002] With the development of technologies such as gene sequencing and brain activity reading, not only a large amount of data is generated, but also higher requirements are put forward for how to store the data effectively, stably and accurately. Based on the above-mentioned background, the optical disk storage technology has well adapted to the requirements of the times due to its advantages of energy saving, long storage life, good safety and easy processing. As for optical disc technology, the limitation of storage capacity seriously hinders the development of optical disc technology. [0003] In order to increase the capacity of the optical disc, the traditional technical route is to reduce the size of the recording spot. With the successful development ...

Claims

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Application Information

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IPC IPC(8): G11B7/005G11B7/0045
CPCG11B7/005G11B7/00451G11B7/00456G11B2007/00457
Inventor 王中阳张力
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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