22 May 2014 Active and passive infrared spectroscopy for the detection of environmental threats
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Abstract
Block MEMS/Engineering develops mid-infrared spectroscopy systems based on both Fourier transform infrared (FTIR) spectrometers and quantum cascade lasers (QCLs). Our recently developed miniaturized external-cavity QCLs are widely tunable over a spectral range of >250 cm-1 and tuning can be accomplished at rates of <25 cm-1 per millisecond. This enables high-speed mid-infrared spectroscopy of gases and surface contaminants for a variety of military and commercial applications. This paper provides an overview of our FTIR and QCL systems and their defense-related applications.
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Erik R. Deutsch, Erik R. Deutsch, Petros Kotidis, Petros Kotidis, Ninghui Zhu, Ninghui Zhu, Anish K. Goyal, Anish K. Goyal, Jim Ye, Jim Ye, Alex Mazurenko, Alex Mazurenko, Mark Norman, Mark Norman, Kostas Zafiriou, Kostas Zafiriou, Mark Baier, Mark Baier, Ray Connors, Ray Connors, } "Active and passive infrared spectroscopy for the detection of environmental threats", Proc. SPIE 9106, Advanced Environmental, Chemical, and Biological Sensing Technologies XI, 91060A (22 May 2014); doi: 10.1117/12.2058544; https://doi.org/10.1117/12.2058544
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