Mid-infrared quantum cascade detectors for applications in spectroscopy and pyrometry
Mid-infrared quantum cascade detectors for applications in spectroscopy and pyrometry
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DOI：
10.1117/12.853351
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发表时间：
2010-01
期刊：
影响因子：
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通讯作者：
D. Hofstetter;F. Giorgetta;E. Baumann;Q. Yang;C. Manz;K. Köhler
中科院分区：
文献类型：
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作者：
D. Hofstetter;F. Giorgetta;E. Baumann;Q. Yang;C. Manz;K. Köhler
本文对近红外和中红外波段的量子级联探测器技术进行了综述。由于其光伏工作原理，最先进的量子级联探测器在高检测速度、可靠的室温工作和出色的约翰逊噪声限制探测率方面提供了巨大的机会。除了涉及到它们的制造和一般特性的一些重要特征外，我们还将简要介绍一些性能改进的可能性。从光导探测器中采用的基本理论考虑证实了这种器件的优化总是涉及到各种取舍。
In this paper, we give an overview of quantum cascade detector technology for the near- and mid-infrared wavelength range. Thanks to their photovoltaic operating principle, the most advanced quantum cascade detectors offer great opportunities in terms of high detection speed, reliable room temperature operation, and excellent Johnson noise limited detectivity. Besides some important features dealing with their fabrication and their general characteristics, we will also briefly present some possibilities for performance improvement. Elementary theoretical considerations adopted from photoconductive detectors confirm that optimization of such devices always involves various trade-offs.