光学
相位控制
波长
相(物质)
计算机科学
材料科学
物理
量子力学
作者
Yan Jing,Yinghui Guo,Mingbo Pu,Xiong Li,Xiaoliang Ma,Xiangang Luo
出处
期刊:Chinese Optics Letters
[Shanghai Institute of Optics and Fine Mechanics]
日期:2018-01-01
卷期号:16 (5): 050003-050003
被引量:5
标识
DOI:10.3788/col201816.050003
摘要
As a consequence of Kramers–Kronig relations, the wavelength-dependent behavior of the metasurface is one of the critical limitations in existing metasurface structures, which reduces the design freedom among different wavelengths. Here, we present an approach to construct a high-efficiency multi-wavelength metasurface with independent phase control by coding different wavelengths into orthogonal polarizations. As proof of the concept, two dual-band metasurfaces have been proposed and numerically demonstrated by multiple vortex beam generation in near-field and polarization multiplexing achromatic beam deflection. Furthermore, simulated results show that the proposed metasurface exhibits high transmission efficiency at both wavelengths, which may find widespread applications in subwavelength electromagnetics.
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