超表面在红外波段的光传输特性:偏振控制、旋光性和不对称传输

摘要

Metasurfaces,a new emerging class of artificial planar materials consisting of arrays of sub-wavelength resonant elements,exhibit structure-determined electromagnetic properties and functionalities,and possess strong ability of controlling the wave front.We herein mainly discuss the theoretical and experimental research advances in optical transmission characteristics of nanostructured metasurfaces in infrared region,from the perspectives of polarization control,optical activity and asymmetric trans-mission,and also briefly describe metasurfaces'manufacturing technique.The paper ends with a discussion on the future develop-ment trends.%超表面(Metasurfaces,MMs)是拥有亚波长尺寸谐振单元结构的人工平面材料,其电磁特性主要由结构决定.超表面具有极强的波前控制能力.本文着重介绍了近年来纳米结构超表面在红外波段的光传输特性,包括光波偏振控制、旋光性、不对称传输等方面的理论和实验研究进展,简要介绍了制备纳米结构超表面的工艺技术.