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Tunable beam manipulation based on phase-change metasurfaces

文献类型：期刊论文

作者Ha, Yingli1,2; Guo, Yinghui1,2; Pu, Mingbo1,2; Li, Xiong1,2; Ma, Xiaoliang1,2; Luo, Xiangang1,2
刊名Applied Optics
出版日期2019-10-10
卷号58期号:29页码:7996-8001
ISSN号1559-128X
DOI10.1364/AO.58.007996
文献子类期刊论文
英文摘要A metasurface combined with phase-change material Ge2Sb2Te5 (GST) is proposed to act as a switchable wave plate to adjust spin-orbit interactions (SOIs), so that the polarization and phase of the reflected light are simultaneously manipulated. A converter, which could act as a quarter-wave plate or three-quarter-wave plate when the GST layer is in the amorphous or crystalline state, and a switch, which could act as a mirror (corresponding to the "OFF" state of SOIs) or half-wave plate (corresponding to the "ON" state of SOIs) when the GST layer is in the amorphous or crystalline state, are designed, respectively. Consequently, a convertible vectorial beams converter, which could generate radial or azimuthal polarization, is designed when the GST layer is in the amorphous or crystalline state. In addition, a switchable vortex beam generator could realize orbital angular momentum with topological charge l = ±2 when the GST layer changes from amorphous to the crystalline state. The designed metasurface could offer a promising route for high-efficiency reconfigurable devices and encrypted optical communications. © 2019 Optical Society of America
WOS关键词GENERATION ; POLARIZATION
WOS研究方向Optics
语种英语
WOS记录号WOS:000489558000010
出版者OSA - The Optical Society
源URL[http://ir.ioe.ac.cn/handle/181551/9662]  
专题光电技术研究所_微细加工光学技术国家重点实验室（开放室）
作者单位1.University of Chinese Academy of Sciences, Beijing; 100049, China
2.State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
推荐引用方式
GB/T 7714		 Ha, Yingli,Guo, Yinghui,Pu, Mingbo,et al. Tunable beam manipulation based on phase-change metasurfaces[J]. Applied Optics,2019,58(29):7996-8001.
APA Ha, Yingli,Guo, Yinghui,Pu, Mingbo,Li, Xiong,Ma, Xiaoliang,&Luo, Xiangang.(2019).Tunable beam manipulation based on phase-change metasurfaces.Applied Optics,58(29),7996-8001.
MLA Ha, Yingli,et al."Tunable beam manipulation based on phase-change metasurfaces".Applied Optics 58.29(2019):7996-8001.

入库方式： OAI收割

来源：光电技术研究所

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