Infrared Technology, Volume. 47, Issue 8, 963(2025)

Design of Sub-wavelength Structure for Transmission-mode GaAs Photocathode with Enhanced Broad-spectrum Absorption

Yi GAO1, Banxiang GUO1, Zhuo XU1, Shiman LI1, Feng SHI2, and Yijun ZHANG1、*
Author Affiliations
  • 1School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • 2Science and Technology on Low-Light-Level Night Vision Laboratory, Xi'an 710065, China
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    References(6)

    [2] [2] KARKARE S, DIMITROV D, SCHAFF W, et al. Monte Carlo charge transport and photoemission from negative electron affinity GaAs photocathodes[J].Journal of Applied Physics, 2013,113(10): 104904.

    [3] [3] SCHWEDE J W, SARMIENTO T, NARASIMHAN V K, et al. Photonenhanced thermionic emission from heterostructures with low interface recombination[J].Nature Communications, 2013,4(1): 1576.

    [4] [4] KARKARE S, BOULET L, CULTRERA L, DUNHAM B, et al. Ultrabright and ultrafast III-V semiconductor photocathodes[J].Physical Review Letters, 2014,112(9): 097601.

    [15] [15] GONG Y N, WANG Y, ZHAO H, et al. Analysis of transmittance of micro-nano structure[C]//Proceedings of SPIE, 2022,12169: 1614-1625.

    [17] [17] ASPNES D E, KELSO S M, LOGAN R A, et al. Optical properties of AlxGa1-xAs[J].Journal of Applied Physics, 1986,60(2): 754-767.

    [19] [19] ZHAO J, CHANG B K, XIONG Y J, et al. Spectral transmittance and module structure fitting for transmission-mode GaAs photocathode[J].Chinese Physics B, 2011,20(4): 496-502.

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    GAO Yi, GUO Banxiang, XU Zhuo, LI Shiman, SHI Feng, ZHANG Yijun. Design of Sub-wavelength Structure for Transmission-mode GaAs Photocathode with Enhanced Broad-spectrum Absorption[J]. Infrared Technology, 2025, 47(8): 963

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    Paper Information

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    Received: Aug. 17, 2024

    Accepted: Sep. 15, 2025

    Published Online: Sep. 15, 2025

    The Author Email: ZHANG Yijun (zhangyijun423@njust.edu.cn)

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