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Chinese Optics Letters, Volume. 18, Issue 10, 100001(2020)

Large effective aperture metalens based on optical sparse aperture system

Tiecheng Liu1,2, Jingpei Hu1、*, Linglin Zhu1, Ruyi Zhou1,2, Chong Zhang1,2, Chinhua Wang3, Aijun Zeng1,2、**, and Huijie Huang1,2
Author Affiliations
  • 1Laboratory of Information Optics and Optoelectronic Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Key Laboratory of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Laboratory of Modern Optical Technologies of the Ministry of Education, Soochow University, Suzhou 215006, China
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    Metalens structure and corresponding optical properties. (a) Three-dimensional (3D) schematic diagram of the metalens. (b) 3D schematic diagram of rectangular annular element. (c) Top view of rectangular annular element. (d) Optimized results of the transmission (blue line) and phase shift (black dots). (e) Intensity distribution profile of the X–Z plane at y=0 μm. (f) Intensity distribution profile of the X–Y plane at z=9.5 μm. (g) FWHM of the metalens at a focal point.

    Fig. 1. Metalens structure and corresponding optical properties. (a) Three-dimensional (3D) schematic diagram of the metalens. (b) 3D schematic diagram of rectangular annular element. (c) Top view of rectangular annular element. (d) Optimized results of the transmission (blue line) and phase shift (black dots). (e) Intensity distribution profile of the X–Z plane at y=0  μm. (f) Intensity distribution profile of the X–Y plane at z=9.5  μm. (g) FWHM of the metalens at a focal point.

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    OSA designs and corresponding MTFs. (a) The Ring6 aperture and parameters in OSA designs. (b) The Ring6 design. (c) The Golay6 design. (d) The Tri-arm7 design. (e) 1D MTF comparison (Ring6, Golay6, and Tri-arm7). (f) 1D MTF comparison (individual metalens, Ring6, effective aperture of Ring6).

    Fig. 2. OSA designs and corresponding MTFs. (a) The Ring6 aperture and parameters in OSA designs. (b) The Ring6 design. (c) The Golay6 design. (d) The Tri-arm7 design. (e) 1D MTF comparison (Ring6, Golay6, and Tri-arm7). (f) 1D MTF comparison (individual metalens, Ring6, effective aperture of Ring6).

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    The simulated imaging results restored by Tikhonov regularization. (a) Original image. (b) Restored image of individual subaperture. (c) Restored image of Ring6. (d) Restored image of effective aperture of Ring6.

    Fig. 3. The simulated imaging results restored by Tikhonov regularization. (a) Original image. (b) Restored image of individual subaperture. (c) Restored image of Ring6. (d) Restored image of effective aperture of Ring6.

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    Tiecheng Liu, Jingpei Hu, Linglin Zhu, Ruyi Zhou, Chong Zhang, Chinhua Wang, Aijun Zeng, Huijie Huang, "Large effective aperture metalens based on optical sparse aperture system," Chin. Opt. Lett. 18, 100001 (2020)

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    Paper Information

    Category: General

    Received: Apr. 13, 2020

    Accepted: Jun. 1, 2020

    Posted: Jun. 1, 2020

    Published Online: Aug. 3, 2020

    The Author Email: Jingpei Hu (hujingpei@siom.ac.cn), Aijun Zeng (aijunzeng@siom.ac.cn)

    DOI:10.3788/COL202018.100001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology