• Chinese Optics Letters
  • Vol. 22, Issue 10, 103601 (2024)
Tianlun Jin1, Chenxu Zhu2, Yang Qiu1, Xingyan Zhao1..., Qize Zhong1, Yuan Dong1,3, Qinghua Song4, Bo Cui2, Shaonan Zheng1,3,* and Ting Hu1|Show fewer author(s)
Author Affiliations
  • 1School of Microelectronics, Shanghai University, Shanghai 201800, China
  • 2Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
  • 3Shanghai Collaborative Innovation Center of Intelligent Sensing Chip Technology, Shanghai University, Shanghai 201800, China
  • 4Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 5l8055, China
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    DOI: 10.3788/COL202422.103601 Cite this Article Set citation alerts
    Tianlun Jin, Chenxu Zhu, Yang Qiu, Xingyan Zhao, Qize Zhong, Yuan Dong, Qinghua Song, Bo Cui, Shaonan Zheng, Ting Hu, "Metasurface-driven dots projection based on generalized Rayleigh-Sommerfeld diffraction theory," Chin. Opt. Lett. 22, 103601 (2024) Copy Citation Text show less

    Abstract

    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.
    Uo(xo,yo)=1jλzexp(jkz)Ui(xi,yi)×exp{jk2z[(xoxi)2+(yoyi)2]}dxidyi.

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    Uo(xo,yo)=eikriλzz2r2Ui(xi,yi)×ei2zdz(xixozr+yiyozr)dxidyi,

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    r=(xoxi)2+(yoyi)2+z2.

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    1Imean1Mi=1M(IiImean)2.

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    11/N1Ni=1N(Ii1N)2,

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    Tianlun Jin, Chenxu Zhu, Yang Qiu, Xingyan Zhao, Qize Zhong, Yuan Dong, Qinghua Song, Bo Cui, Shaonan Zheng, Ting Hu, "Metasurface-driven dots projection based on generalized Rayleigh-Sommerfeld diffraction theory," Chin. Opt. Lett. 22, 103601 (2024)
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