The variation of spectral response of transmission-type GaAs photocathode in the seal process

Lei Liu; Benkang Chang

doi:10.1117/12.568674

31 January 2005 The variation of spectral response of transmission-type GaAs photocathode in the seal process

Lei Liu, Benkang Chang

Proceedings Volume 5624, Semiconductor and Organic Optoelectronic Materials and Devices; (2005) https://doi.org/10.1117/12.568674
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

In this paper, firstly the spectral response of transmission-type GaAs photocathode is measured online by the spectral response-testing instrument. Then the cathode is sealed in the third generation intensifier and put into the instrument again to get another spectral response curve. The variation of spectral response curves was compared. The results show that through the seal process, the spectral response in the long wavelength decrease. Based on these curves, the spectral matching factors of GaAs photocathode for green vegetation and rough concrete are calculated. The calculated performance parameters show that the variation of the spectral response in the seal process is an important influence factor on the performance of the intensifier in the use of night vision.

Citation Download Citation

Lei Liu and Benkang Chang "The variation of spectral response of transmission-type GaAs photocathode in the seal process", Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); https://doi.org/10.1117/12.568674

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