光子学报, 2020, 49 (9): 0923002, 网络出版: 2020-12-26
基于偏振响应的双焦点超表面透镜设计 
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Design of Metasurface Lens with Two Focal Spots Based on Polarization Response
图 & 表
图 1. 微元结构示意图及结构参数与相位延迟、转化效率和透过率之间的关系
Fig. 1. Unit of the metasurface and its phase shift, conversion efficiency and transmission coefficient
图 2. 超表面透镜原理示意图及器件俯视图
Fig. 2. Principle of polarization-response metalens and top view of the designed device
图 3. 在各个偏振态入射时器件中心处轴向光强及x -z 平面上的光强分布
Fig. 3. Intensity distributions at the center of the device and in the x -z planewhen illuminated by incident light at each polarization state
图 4. 半高宽与焦点间距的关系及横向半高宽比较
Fig. 4. The relationship between FWHM and separation distance and the comparison of transverse FWHM
表 1代表性结构的参数
Table1. Parameters of representative structures
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赵鹏九, 刘首鹏, 罗宇, 任伟, 陈晓虎. 基于偏振响应的双焦点超表面透镜设计[J]. 光子学报, 2020, 49(9): 0923002. Peng-jiu ZHAO, Shou-peng LIU, Yu LUO, Wei REN, Xiao-hu CHEN. Design of Metasurface Lens with Two Focal Spots Based on Polarization Response[J]. ACTA PHOTONICA SINICA, 2020, 49(9): 0923002.
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