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Proceedings Paper

Hollow waveguides for the transmission of quantum cascade laser (QCL) energy for spectroscopic applications
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Paper Abstract

Spectroscopy in the long-wave infrared (LWIR) wavelength region (8 to 12 μm) is useful for detecting trace chemical compounds, such as those indicative of weapons of mass destruction (WMD). To enable the development of field portable systems for anti-proliferation efforts, current spectroscopy systems need to be made more robust, convenient, and practical (e.g., miniaturized). Hollow glass waveguides have been used with a Quantum Cascade Laser source for the delivery of single-mode laser radiation from 9 to 10 μm. The lowest loss measured for a straight, 484 μm-bore guide was 0.44 dB/m at 10 μm. The smallest 300 μm-bore waveguide transmitted singlemode radiation even while bent to radii less than 30 cm.

Paper Details

Date Published: 16 February 2011
PDF: 6 pages
Proc. SPIE 7894, Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI, 789414 (16 February 2011); doi: 10.1117/12.881548
Show Author Affiliations
James A. Harrington, Rutgers Univ. (United States)
Carlos M. Bledt, Rutgers Univ. (United States)
Jason M. Kriesel, Opto-Knowledge Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 7894:
Optical Fibers, Sensors, and Devices for Biomedical Diagnostics and Treatment XI
Israel Gannot, Editor(s)

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