短波红外InGaAs焦平面探测器噪声机理研究

项目名称： 短波红外InGaAs焦平面探测器噪声机理研究

项目编号： No.61475179

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 李雪

作者单位： 中国科学院上海技术物理研究所

项目金额： 82万元

中文摘要： 短波红外探测在航天遥感、微光夜视、空间天文等领域有重要需求，研究短波红外InGaAs焦平面探测器的噪声机理，对短波红外弱信号探测能力的提升具有十分重要的意义。本项目基于不同类型、不同波长短波红外InGaAs焦平面探测器，构建其噪声物理模型，结合光敏芯片和读出电路设计和性能，明确其噪声来源和影响因素；揭示短波红外InGaAs焦平面的噪声机理，特别关注光敏芯片与读出电路耦合过程中，光敏芯片参数与读出电路参数耦合的适配性，提取耦合接口噪声，获得降低短波红外InGaAs焦平面探测器噪声的方法；分析焦平面的均匀性、串音等与噪声的关系，获得自主研制的InGaAs焦平面探测器优化工作参数，为红外探测领域的发展提供理论基础。

中文关键词： 铟镓砷；红外焦平面阵列；噪声机理

英文摘要： Shortwave infrared detection has important applications requirements such as space remote sensing, night vision, space astronomy and so on. It's very important to research the noise mechanism of InGaAs shortwave infrared focal plane arrays for promoting the detection capability especially in weak signal detection conditions. This project will aim to study the physical noise mechanism both for lattice-matched and wave-extended InGaAs focal plane arrays with different types, and research the origination of noise mechanism. Special attentions will be played in the coupling interface of InGaAs detectors and readout integrated circuit and obtain the coupling noise, and the compatience between parameters of the InGaAs detector and ROIC will be analyzed in order to achieve the low noise design method. Relationship between the crosstalk, uniformity and the noise will be studied to obtain the optimization parameters of independently developed InGaAs focal plane arrays, which will be helpful to provide the theoretical basis for the development of infrared detection.

英文关键词： InGaAs;infrared focal plane arrays;noise mechanism