A metasurface-based optical logic gate

An optical logic and metasurface technology, applied in the field of optical logic gates, can solve the problems of complex optical logic gate structure and difficult integration, and achieve the effect of broad application prospects, easy integration, and large-scale parallel computing.

Inactive Publication Date: 2020-12-01
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application solves the problem of complex structure and difficult integration of optical logic gates in the prior art by providing a metasurface-based optical logic gate

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  • A metasurface-based optical logic gate
  • A metasurface-based optical logic gate
  • A metasurface-based optical logic gate

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Embodiment Construction

[0033] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] This embodiment provides an optical logic gate based on a metasurface, including: a polarizer, a metasurface, and an analyzer, and the incident light is emitted after passing through the polarizer, the metasurface, and the analyzer in sequence , the polarizing direction of the polarizer and the analyzing direction of the polarizer are used as the input of the logic gate, and the light intensity of the outgoing light is used as the output of the logic gate, see figure 1 .

[0035] Wherein, the metasurface is composed of a substrate and an array of nano-bricks deposited thereon, the substrate is divided into a plurality of unit structures, and each unit structure is provided with a nano-brick. Specifically, the base is a transparent base, a...

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Abstract

The invention belongs to the technical field of micro-nano optics and polarization optics, and discloses a metasurface-based optical logic gate. The optical logic gate comprises a polarizer, a metasurface and an analyzer, incident light sequentially passes through the polarizer, the metasurface and the analyzer and then is emitted out, a polarization direction of the polarizer and a polarization analysis direction of the analyzer serve as input of the logic gate, and light intensity of the emergent light serves as output of the logic gate. Problems that in the prior art, an optical logic gateis complex in structure and difficult to integrate are solved, the optical logic gate of the invention is flexible in design and easy to integrate, large-scale parallel computing is expected to be achieved, and the optical logic gate has wide application prospects in aspects of all-optical networks, optical computing and the like.

Description

technical field [0001] The invention relates to the technical fields of micro-nano optics and polarization optics, in particular to an optical logic gate based on a metasurface. Background technique [0002] As a concept in circuits, logic gates are the basic unit of digital logic circuits and are widely used in the field of electronic information. It can perform various logical operations such as "and", "or", "exclusive or", etc. Any complex digital logic circuit can be composed of these logic gates. With the rapid increase in the amount of information in modern society, the requirements for information transmission and processing speed are getting higher and higher. It is difficult for traditional electrical logic gates to overcome the "electronic bottleneck" in electronic technology itself, so new technological breakthroughs are urgently needed. [0003] In the all-optical network, the data transmitted from the source node to the destination node is carried out in the fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F3/00
CPCG02F3/00
Inventor 李子乐郑国兴李仲阳戴琦付娆邓联贵邓娟
Owner WUHAN UNIV
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