Hyperbolic metasurface based on graphene-boron nitride transverse heterojunction and preparation method and application thereof

Abstract

The invention belongs to the technical field of metasurfaces and micro-nano photons, and particularly relates to a hyperbolic metasurface material based on a graphene-boron nitride transverse heterojunction and a preparation method and application thereof. By covering the heterostructure layer on the substrate, the periodic nano grating structure formed by arranging the plurality of strip-shaped graphene layers and the plurality of strip-shaped boron nitride layers at intervals is formed. According to the invention, the coupling of the phonon polaron in the boron nitride surface and the graphene plasmon can be realized, and a plasmon-hyperbolic phonon polaron hybrid mode with excellent properties of the two polaritons is formed. Dynamic regulation and control of a hyperbolic metasurface light field can be achieved by utilizing the property that the Fermi level of graphene is adjustable, and the hyperbolic metasurface structure is small in size, high in integration level, suitable for ultra-high-density integrated light path design and has important application value in the fields of metasurface imaging, light energy transmission devices and the like.

Description

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AI Technical Summary

Benefits of technology

This patented technology uses special materials called BN or beta oxide (B2O3) that form an interface between different layers inside a layered material like glass. These interfaces allow electrons from one layer to pass through while prevention of other particles from passing into another layer's space. By combining these techniques with specific structures made by certain elements, there will become more efficient ways to control how electric waves travel within such systems. Overall, this new method allows us create compact yet powerful components suitable for use in various applications including telecommunication equipment.

Problems solved by technology

Technological Problem: Hyperbolically Metastatic Material (HMM) presents challenges when trying to create high efficiency reflection displays or detectors that work within certain frequency ranges from visible rays to infrared lights. Current methods involve modifying surfaces made up entirely of conventional metaelectric layers, including bimodals, pyroferritanum dipolymers, and dichloroindium polytungstates. While these techniques improve performance, they also result in decreased sensitivity towards electric/microphones.

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