摘要
从电磁相位的产生机理角度,电磁超表面可分为利用微结构共振响应的共振相位超表面和利用微结构各向异性响应的几何相位超表面。同共振相位超表面相比,几何相位超表面因为具有非色散、偏振依赖、易于制备等特点,因而受到广泛关注。综述了利用几何相位超表面来自由调控电磁波的原理和方法,重点讲述电磁波远场和近场的一系列调控现象并介绍这些现象在全息成像、特殊光束激发和探测、平面消色差透镜等方面的具体应用。
According to the generation mechanism of electromagnetic(EM)phase,electromagnetic metasurfaces can be divided into resonance-based metasurfaces using resonance response of microstructures and geometric-phase metasurfaces using anisotropic response of microstructures.In comparison with the resonance-based metasurfaces,geometric-phase metasurfaces have attracted much attention in recent years because of their non-dispersion,polarization dependence,and easy fabrication.This study presents an overview of the development of geometricphase metasurfaces from the principle and method of their free modulation of EM waves to their extraordinary wavefront manipulation abilities in both the far-and near-field regions.Finally,we also present three typical applications enabled by geometric-phase metasurfaces,including highly efficient meta-hologram,vortex beam generator/detector,and flat achromatic metalens.
作者
胡中
徐涛
汤蓉
郭会杰
肖诗逸
Hu Zhong;Xu Tao;Tang Rong;Guo Huijie;Xiao Shiyi(Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200444,China;State Key Laboratory of Surface Physics,Department of Physics,Fudan University,Shanghai 200433,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第20期105-125,共21页
Laser & Optoelectronics Progress
基金
国家自然科学基金（11704240）
上海市自然科学基金（17ZR1409500）
上海市青年科技启明星计划（18QA1401800）
上海市东方学者计划
复旦大学应用表面物理国家重点实验室开放课题（KF2017_02)
关键词
表面光学
超材料
超表面
几何相位
表面等离激元
波束设计
全息成像
optics at surfaces
metamaterials
metasurfaces
geometric phase
surface plasmon polaritons
beam engineering
holography
