原子层厚度超表面光场调控原理及应用

Principle and application of metasurface optical field modulation of atomic layer thickness

超表面由亚波长尺度二维人工微结构构成,可以实现对光场振幅、相位、偏振等多参量进行调控,为光场调控提供了优良平台。二维材料作为一种新型层状结构材料,相对于三维体材料有着十分独特的光学和电学特性,其与超表面结合为纳米尺度平面光学器件的发展提供了新的可能。本文综述了基于原子层厚度的二维材料超表面发展,介绍了多种二维材料超表面光场调控机制、制备以及应用,最后对原子层厚度超表面发展面临的挑战和潜在应用进行展望。

Metasurfaces,composed of subwavelength-scale artificial nanostructures,can realize the versatile modulation of multiple attributes of light such as amplitude,phase and polarization,providing an excellent platform for nanophotonic devices.As a new type of layered material,2D materials manifest peculiar optical and electrical properties compared to 3D bulk materials.The combination of 2D materials with metasurfaces offers new possibilities for the development of nanoscale planar optical devices.This paper reviews the development of metasurfaces based on 2D materials with atomic thicknesses,introduces the mechanism of light field modulation of various 2D material metasurfaces.An outlook on the challenges and potential applications for the development of atomic layer thickness metasurfaces are provided finally.