Highly Efficient Bifunctional Dielectric Metasurfaces at Visible Wavelength: Beam Focusing and Anomalous Refraction in High-Order Modes

Highly Efficient Bifunctional Dielectric Metasurfaces at Visible Wavelength: Beam Focusing and Anomalous Refraction in High-Order Modes

Metasurface is an artificially arranged sub-wavelength micro-structure array, where each structure can be regarded as a unit cell that is controlled by electromagnetic waves. Recently, bifunctional metasurfaces have garnered increasing interest and become excellent candidates for device miniaturizat...

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Bibliographic Details
Main Authors: Zhenyu Xu, Zhiwei Li, Yanqing Tian, Yunbing Wei, Fei Wu
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-10-01
Series:Frontiers in Physics
Subjects:
metasurface
bifunctional
highly-efficient
high-order
visible band
Online Access:https://www.frontiersin.org/article/10.3389/fphy.2020.575824/full

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