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Enhanced broadband (11-15 μm) QWIP FPAs for space applications

机译：适用于太空应用的增强型宽带（11-15μm）QWIP FPA

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摘要

The European Space Agency is currently funding a project led by Alcatel-Thales III-V Lab, intended to develop high performance, broadband (11-15 μm) Quantum Well Infrared Photodetectors (QWIPs) and optimised read-out circuits for Earth Observation and Planetary Science missions. In this talk we will present an exhaustive study of the performance achieved on QWIP layers designed for dispersive spectro-imagers (narrowband detectors) as well as Fourier Transform spectro-imagers (broadband detectors). The performance is calculated based on the electro-optical characteristics of the QWIP layers, the technical requirements and the read-out characteristics coming from the predevelopment phase. In the read-out predevelopment phase SPICE simulation transistor model parameters have been extracted valid for an adequate circuit simulation at the required operating temperature range. Different read-out architectures have been studied to attain the final demonstrator's requirements. As a result of this study, two different pixel topologies have been retained which will be implemented as 128x256 sections in the 256x256 pixel demonstrator. The roadmap for the next project steps will also be presented.
机译：欧洲航天局目前正在资助一个由阿尔卡特-塔利斯III-V实验室牵头的项目，该项目旨在开发高性能宽带（11-15μm）量子阱红外光电探测器（QWIP）和优化的用于地球观测和行星观测的读出电路科学任务。在本次演讲中，我们将对为色散光谱成像器（窄带检测器）和傅立叶变换光谱成像器（宽带检测器）设计的QWIP层实现的性能进行详尽的研究。性能是根据QWIP层的光电特性，技术要求和来自预开发阶段的读出特性来计算的。在读出的预开发阶段，已经提取了SPICE仿真晶体管模型参数，这些参数对于在所需工作温度范围内进行足够的电路仿真有效。为了达到最终演示者的要求，已经研究了不同的读出架构。这项研究的结果是，保留了两种不同的像素拓扑，这些拓扑将在256x256像素演示器中实现为128x256的部分。还将介绍下一个项目步骤的路线图。

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