Inverse design of 1D color splitter for high-efficiency color imaging  

作　　者：Jiahao Li Mengwei Cao Weili Liang Yilin Zhang Zhenwei Xie Xiaocong Yuan 黎家豪;曹孟威;梁伟立;张屹林;谢振威;袁小聪(Nanophotonics Research Center,Shenzhen Key Laboratory of Micro-Scale Optical Information Technology&Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen 518060,China;Department of Physics,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]Nanophotonics Research Center,Shenzhen Key Laboratory of Micro-Scale Optical Information Technology&Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen 518060,China [2]Department of Physics,Harbin Institute of Technology,Harbin 150001,China

出　　处：《Chinese Optics Letters》2022年第7期47-51,共5页中国光学快报（英文版）

基　　金：supported by the Guangdong Major Project of Basic and Applied Basic Research(No.2020B0301030009);National Natural Science Foundation of China(Nos.61935013,61975133,and 11947017);Natural Science Foundation of Guangdong Province(No.2020A1515011185);Science and Technology Innovation Commission of Shenzhen,Shenzhen Peacock Plan(Nos.KQJSCX20170727100838364,KQTD20170330110444030,ZDSYS201703031605029,and JCYJ20200109114018750);Shenzhen University(No.2019075)。

摘　　要：We introduce a simple one-dimensional(1D)structure in the design of 1D color splitters(1D-CSs)with RGB unit cells for color imaging and propose a single-to-double-layer design in 1D-CSs.Based on inverse design metasurfaces,we demonstrate numerically a single-layer 1D-CS with a full-color efficiency of 46.2%and a double-layer 1D-CS with a full-color efficiency of48.2%;both of them are significantly higher than that of traditional color filters.Moreover,we demonstrate a 1D-CS that has application value by evaluating the double-layer 1D-CS’s performances in terms of incident angle sensitivity,polarization angle sensitivity,and assembly tolerance.

关 键 词：color splitter color imaging inverse design metasurfaces 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]