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

Daniel Hofstetter, F.R. Giorgetta, E. Baumann, Q. Yang, C. Manz & K. Köhler

Abstract Abstract 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 tradeoffs.
   
Keywords
   
Citation Hofstetter, D., Giorgetta, F., Baumann, E., Yang, Q., Manz, C., & Köhler, K. (2010). Mid-infrared quantum cascade detectors for applications in spectroscopy an pyrometry. Applied Physics B: Lasers and Optics 100, 100(2), 313-320.
   
Type Journal article (English)
Date of appearance 2010
Journal Applied Physics B: Lasers and Optics 100
Volume 100
Issue 2
Pages 313-320