Nonuniformity analyses of IRFPA with DI readout circuit

Wei Wang, Yang Yu Fan, Qiang Guo, Jun Ming Liu

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

Nonuniformity impacting factors on an IRFPA with direct injection (DI) readout circuit and InSb PV detector are analyzed in this paper. The nonuniformity of threshold voltage results in deviation of detector bias and current. Then the detector nonuniformity and injection efficiency nonuniformity occur. Another expression for injection efficiency is deduced and its relation with detector bias is obtained. Relation between FPA nonuniformity and detector I-V characteristics is analyzed. The bias range from -0.2V to -0.1V is an ideal operating region for detector array. Small deviation of detector current, insensitive to nonuniformity of threshold voltage, uniform response of detector array, high detector impedance and high injection efficiency are all satisfied in this region. The best gate voltage range of injection MOSFET is from 3.6V to 3.7V. FPA has minimum nonuniformity in this region, which is corresponding to detector bias from -0.2V to -0.1V. Results shown in this paper optimize the performance of FPA.

源语言英语
主期刊名International Symposium on Photoelectronic Detection and Imaging 2009 - Advances in Infrared Imaging and Applications
DOI
出版状态已出版 - 2009
活动International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications - Beijing, 中国
期限: 17 6月 200919 6月 2009

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
7383
ISSN(印刷版)0277-786X

会议

会议International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
国家/地区中国
Beijing
时期17/06/0919/06/09

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