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Proceedings Paper

In-situ and stand-off sensing using QC/IC laser technology from 3-100 microns
Author(s): Mark G. Allen; David J. Cook; Brian K. Decker; Joel M. Hensley; David I. Rosen; Michelle L. Silva; David M. Sonnenfroh; Richard T. Wainner
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Paper Abstract

Recent advances in current-pumped, bandgap-engineered semiconductor lasers have dramatically impacted laser-based sensor concepts for in-situ trace species measurement and standoff sensing applications. These devices allow a common technology platform to access strong fundamental vibrational absorption transitions of many gases, liquids, and solids in the mid-wave and long-wave IR, as well as far-IR, or THz. The THz wavelength region is particularly interesting for applications related to structure penetrating detection of hidden materials and biomolecular spectroscopy. This presentation will briefly review the important properties of these lasers as they apply to sensor design and present highlights of recent sensor development activity for trace gas analysis in environmental and biomedical applications, remote sensing LIDAR systems, and detection of hidden explosives.

Paper Details

Date Published: 25 March 2005
PDF: 10 pages
Proc. SPIE 5732, Quantum Sensing and Nanophotonic Devices II, (25 March 2005); doi: 10.1117/12.598279
Show Author Affiliations
Mark G. Allen, Physical Sciences Inc. (United States)
David J. Cook, Physical Sciences Inc. (United States)
Brian K. Decker, Physical Sciences Inc. (United States)
Joel M. Hensley, Physical Sciences Inc. (United States)
David I. Rosen, Physical Sciences Inc. (United States)
Michelle L. Silva, Physical Sciences Inc. (United States)
David M. Sonnenfroh, Physical Sciences Inc. (United States)
Richard T. Wainner, Physical Sciences Inc. (United States)

Published in SPIE Proceedings Vol. 5732:
Quantum Sensing and Nanophotonic Devices II
Manijeh Razeghi; Gail J. Brown, Editor(s)

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