Mid-infrared quantum cascade detectors for applications in spectroscopy and pyrometry

Daniel Hofstetter; Fabrizio R. Giorgetta; Esther Baumann; Quankui Yang; Christian Manz; Klaus Köhler

doi:10.1117/12.853351

22 January 2010 Mid-infrared quantum cascade detectors for applications in spectroscopy and pyrometry

Daniel Hofstetter, Fabrizio R. Giorgetta, Esther Baumann, Quankui Yang, Christian Manz, Klaus Köhler

Proceedings Volume 7608, Quantum Sensing and Nanophotonic Devices VII; 76081N (2010) https://doi.org/10.1117/12.853351
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

An overview of quantum cascade detector technology for the near- and mid-infrared wavelength range will be given. Thanks to photovoltaic instead of photoconductive operation, quantum cascade detectors offer great opportunities in terms of detection speed, room temperature operation, and detectivity. Besides some crucial issues dealing with fabrication and general characteristics, some possibilities for performance improvement will also be briefly presented. In a theory section, some basic considerations adopted from photoconductive detectors confirm the necessity of various trade-offs for the optimization of such devices. Nevertheless, we will show several possible measures to push the key performance figures of these detectors closer to their physical and technological limits.

Citation Download Citation

Daniel Hofstetter, Fabrizio R. Giorgetta, Esther Baumann, Quankui Yang, Christian Manz, and Klaus Köhler "Mid-infrared quantum cascade detectors for applications in spectroscopy and pyrometry", Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76081N (22 January 2010); https://doi.org/10.1117/12.853351

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