Metasurface-driven dots projection based on generalized Rayleigh-Sommerfeld diffraction theory  

作　　者：Tianlun Jin Chenxu Zhu Yang Qiu Xingyan Zhao Qize Zhong Yuan Dong Qinghua Song Bo Cui Shaonan Zheng Ting Hu 金天伦;朱晨旭;邱阳;赵兴岩;钟其泽;董渊;宋清华;崔波;郑少南;胡挺(School of Microelectronics,Shanghai University,Shanghai 201800,China;Department of Electrical and Computer Engineering,University of Waterloo,Waterloo,Ontario N2L 3G1,Canada;Shanghai Collaborative Innovation Center of Intelligent Sensing Chip Technology,Shanghai University,Shanghai 201800,China;Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 5l8055,China)

机构地区：[1]School of Microelectronics,Shanghai University,Shanghai 201800,China [2]Department of Electrical and Computer Engineering,University of Waterloo,Waterloo,Ontario N2L 3G1,Canada [3]Shanghai Collaborative Innovation Center of Intelligent Sensing Chip Technology,Shanghai University,Shanghai 201800,China [4]Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 5l8055,China

出　　处：《Chinese Optics Letters》2024年第10期112-117,共6页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62205193,62204149,and U23A20356);the Shanghai Collaborative Innovation Center of Intelligent Sensing Chip Technology;the Shanghai Key Laboratory of Chips and Systems for Intelligent Connected Vehicle。

摘　　要：The diffractive optical element(DOE)is an important component of three-dimensional(3D)imaging systems based on structured light.In this work,we designed the metasurface-driven DOEs based on generalized Rayleigh–Sommerfeld diffraction theory to project large field of view(FOV)pseudo-random dot array for 3D imaging.We measured an efficiency of 61.04%and root-mean-square error(RMSE)of 0.45 for the 60°FOV sample and an efficiency of 42.96%and RMSE of 0.75 for the 144°FOV sample.Because the pattern is designed based on the generalized Rayleigh–Sommerfeld diffraction theory,the projected pattern is similar to the target pattern and has even intensity.

关 键 词：metasurface diffractive optical element Rayleigh–Sommerfeld diffraction structured light 

分 类 号：O436.1[机械工程—光学工程]