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Broadband and dispersion-free reflective silver metasurfaces as half-wave plate and vortex-beam generator
Zhang, Xiaodong1,2,3; Kong, Depeng1,2; Yuan, Yuan1,2; Mei, Sen1,2; wang, Lili1,2; Wang, Guoxi1,2
作者部门信息光子学研究室
2020-06-15
发表期刊Optics Communications
ISSN00304018
卷号465
产权排序1
摘要

Metasurfaces have attracted increasing interest in manipulation of polarization state due to optical response in sub-wavelength size. This paper presents an approach to design reflective silver metasurfaces and demonstrates that they can act as half-wave plate and vortex-beam generator with high performance in simulation, namely, polarization conversion efficiency is about 85% as half-wave plate and mode purity of vortex beam is greater than 80% as vortex-beam generator. The designed reflective metasurfaces comprise three layers. The top layer is composed of two elliptic silver sub-wavelength pillars assembled into L pattern and arranged into array distribution. The middle layer is a thin dielectric spacer (SiO2) and the bottom layer is silver ultrathin film. The metasurfaces have advantages of broadband (70∼110 THz) and dispersion-free. The simulated results are also in good agreement with theoretical derivation. In addition, the separation between the reflective components makes the design more suitable for spatial mode multiplexing and may become a potential candidate in integrated optical communication system in future. © 2020 Elsevier B.V.

关键词Plasmonic metasurfaces Reflective Half-wave plate Vortex beam
DOI10.1016/j.optcom.2020.125561
收录类别SCI ; EI
语种英语
WOS记录号WOS:000521025300005
出版者Elsevier B.V.
EI入藏号20201008263523
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/93291
专题信息光子学研究室
通讯作者Kong, Depeng
作者单位1.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.School of Physics and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou Henan; 450002, China
推荐引用方式
GB/T 7714
Zhang, Xiaodong,Kong, Depeng,Yuan, Yuan,et al. Broadband and dispersion-free reflective silver metasurfaces as half-wave plate and vortex-beam generator[J]. Optics Communications,2020,465.
APA Zhang, Xiaodong,Kong, Depeng,Yuan, Yuan,Mei, Sen,wang, Lili,&Wang, Guoxi.(2020).Broadband and dispersion-free reflective silver metasurfaces as half-wave plate and vortex-beam generator.Optics Communications,465.
MLA Zhang, Xiaodong,et al."Broadband and dispersion-free reflective silver metasurfaces as half-wave plate and vortex-beam generator".Optics Communications 465(2020).
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