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首页> 外文会议>Conference on Quantum Sensing and Nanophotonic Devices; 20040125-20040129; San Jose,CA; US >Uncooled long wavelength infrared photon detectors
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Uncooled long wavelength infrared photon detectors

机译：非制冷长波长红外光子探测器

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摘要

At present, uncooled thermal detector focal plane arrays are successfully used in staring thermal imagers. However, the performance of thermal detectors is modest, they suffer from slow response and they are not very useful in applications requiring multispectral detection. In the paper, a number of concepts to improve performance of photon detectors operating at room temperature are presented. Several types of detector materials are considered: HgCdTe, Sb-based Ⅲ-Ⅴ ternary alloys, and type-Ⅱ InAs/GaSb superlattice. Initial efforts were concentrated on photoconductors and photoelectromagnetic detectors. Recently, advanced heterojunction photovoltaic detectors have been developed. It is shown that uncooled HgCdTe photovoltaic detector can achieve detectivity of 10~9 cmHz~(1/2)W~(-1) at the 8-9 μm range. Potentially the devices can be assembled in large focal plane arrays. This will enable obtaining of NEDT of less than 0.1 K for staring thermal imagers operating with f/1 optics and 30 s~(-1) frame rate.
机译：目前，未冷却的热探测器焦平面阵列已成功用于凝视热成像仪中。但是，热探测器的性能中等，它们的响应速度很慢，并且在需要多光谱探测的应用中不是很有用。在本文中，提出了许多改善在室温下工作的光子探测器性能的概念。考虑了几种类型的检测器材料：HgCdTe，Sb基的Ⅲ-Ⅴ三元合金和Ⅱ型InAs / GaSb超晶格。最初的工作集中在光电导体和光电探测器上。最近，已经开发了先进的异质结光伏探测器。结果表明，未冷却的HgCdTe光电探测器在8-9μm范围内可达到10〜9 cmHz〜（1/2）W〜（-1）的探测率。潜在地，这些装置可以组装成大焦平面阵列。对于以f / 1光学元件和30 s〜（-1）帧频工作的凝视型热成像仪，这将获得小于0.1 K的NEDT。

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