光导型光电探测器瞬变行为的仿真  

Imitation of the Instantaneous Change Behaviors of Photoconductive Detectors

作　　者：马丽芹[1] 陆启生[1] 杜少军[1] 唐松生[2] 程湘爱[1] 

机构地区：[1]国防科技大学理学院定向能研究所,湖南长沙410073 [2]青岛科技大学,山东青岛266042

出　　处：《中国激光》2004年第3期342-346,共5页Chinese Journal of Lasers

基　　金：国家 8 6 3激光技术领域 (86 3 4 10 5 )资助课题

摘　　要：较强功率的激光辐照半导体探测器时既产生光电效应又产生热效应 ,提出了反映光电效应的载流子输运模型和反映热效应的热扩散模型。计算了不同激光辐照功率密度下PC型HgCdTe探测器内的光生载流子浓度和热平衡载流子浓度 ,由此对探测器的瞬变行为进行了仿真计算 。Photoconductive effect and heat effect in semiconductor photoconductive detectors when they are irradiated by laser were considered simultaneously. A transportation model of photoconductive carriers and heat transmission model were established. The photoconductive carriers consistency and the heat equilibrium carriers consistency in PC-type HgCdTe detectors under various laser irradiation density were calculated. Instantaneous change behaviors of the detectors were imitated further. The imitative results are identical with experimental results.

关 键 词：光电子学 光导型光电探测器 瞬变行为 热平衡载流子 光生载流子 仿真 

分 类 号：TN36[电子电信—物理电子学]