Graphene based waveguide path selector

Abstract

The invention discloses a graphene based waveguide path selector. The graphene based waveguide path selector comprises a selector body; the selector body is a cuboid; the selector is mainly formed by a graphene layer which is made of graphene materials, a continuous coating layer and an interrupt groove layer which are made of semiconductor materials and a substrate layer, a positive ladder body, a filling layer and a concave ladder body which are made of non-conducting materials. According to the graphene based waveguide path selector, the waveguide path selector is constructed according to the voltage adjustable character of the graphene, then connection and disconnection of SPP waves on different areas of the graphene can be controlled due to continuous change of the voltage, and accordingly waveguide path selection is achieved and additionally, the broadcasting distance of the SPP waves in the waveguide path selector is far relatively due to the character that an imaginary part of the electrical conductivity of the graphene shows metallicity when being larger than zero and does not generate large attenuation after entering of electromagnetic waves.

Description

technical field [0001] The invention relates to the technical field of graphene, in particular to a waveguide path selector based on graphene. Background technique [0002] At present, most waveguides (such as rectangular waveguides, circular waveguides, or dielectric waveguides, etc.) are transmitted in a single path. If you want to obtain multi-path selective transmission, you must change the physical structure at the time of selection, which is very inconvenient and not easy to realize. In addition, SPP waves (surface plasmon waves) can only propagate in metallic materials. For conductors, although their metallic properties are relatively good, once electromagnetic waves enter it, they will rapidly attenuate due to the skin effect, resulting in electromagnetic waves in the conductor. The propagation distance is very limited. [0003] Graphene is a new material with a single-layer sheet structure composed of carbon atoms. It is a planar film composed of carbon atoms in a...

AI Technical Summary

Problems solved by technology

If you want to obtain multi-path selective transmission, you must change the physical structure at the time of selection, which is very inconvenient and not easy to achieve

In addition, SPP waves (surface plasmon waves) can only propagate in metallic materials. For conductors, although their metallic properties are relatively good, once electromagnetic waves enter it, they will rapidly attenuate due to the skin effect, resulting in electromagnetic waves in the conductor. The transmission distance is very limited

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