(英)低过剩噪声级联倍增雪崩探测器
投稿时间:2018-12-10  修订日期:2019-03-04  点此下载全文
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作者单位E-mail
唐艳 中国电子科技集团公司第四十四研究所 liuxuchitang@163.com 
基金项目:联合装备预研基金
中文摘要:基于弛豫空间倍增理论数值模型和修正的弛豫空间倍增理论模型,分析了不同倍增级数和不同载流子初始能量时探测器的过剩噪声。研究了不同碰撞离化倍增层厚度、不同电子预加热层厚度、不同电场控制层掺杂浓度对过剩噪声因子的影响。同时,比较了DSMT模型、Van Vilet模型和McIntyre模型得到的结果。通过调整碰撞离化倍增层厚度、电子预加热层厚度和电场控制层掺杂浓度,DSMT数值模拟获得了一个相对优化的结构,其过剩噪声与Van Vliet模型ks=0.057时相当。
中文关键词:过剩噪声,级联倍增,弛豫空间倍增理论DSMT,弛豫空间
 
Multi-gain-stage avalanche photodiodes with low excess noise
Abstract:On the basis of deadspace multiplication theory(DSMT) numeric model and modified deadspace multiplication theory(MDSMT)model, excess noise of photodiodes with different multiplication stage and different carrier initial energy was analyzed. The effect on excess noise of different width of impact-ionization multiplication layer and electron-heating layer and different doping of electric field control layer was also studied. At the same time, the results obtained from DSMT model were compared to the results from Van Vliet model and McIntyre model. By adjusting the width of impact-ionization multiplication layer and electron-heating layer and the doping of electric field control layer, a structure relatively optimizing was acquired by DSMT numeric simulation, the result of excess noise on which were comparable to the result of Van Vliet model at ks=0.057.
keywords:excess noise, multi-gain-stages, deadspace multiplication theory(DSMT), deadspace
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