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Proceedings Paper

Multichannel MCT/PIR-fiber detectors for fast pyrometry and multispectral sensing
Author(s): Vjacheslav G. Artioushenko; Natalia I. Afanasyeva; Reinhard F. Bruch
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Paper Abstract

MCT-detectors are the most sensitive detectors used for spectroscopic applications in the middle infrared (MIR) fingerprint region of spectra (5-15 micrometers ), but their exploitation requires Liquid Nitrogen (LN) cooling in specialized optical dewars and precise optical alignment systems. Polycrystalline Infrared (PIR) fibers from solid solutions of AgCl/AgBr are transparent in the spectral range of 4-18 micrometers and have been coupled with pigtailed MCT detectors. The combination of such more advanced MCT detectors with PIR-fibers' flexibility enables remote spectroscopy of chemical reaction processes in situ or biomedical diagnostics in vivo at distances up to 20 meters from Fourier Transform Infrared (FTIR), Tunable Diode Laser (TDL) or optical filter spectrometers. The main advantage of these multichannel MCT/PIR detectors for spectroscopy and multispectral sensing is that there is no need for costly and bulky optics and time consuming alignment procedures of the MCT detector and the dewar in relation to the IR sources used. In this study, PIR-fiber pigtailed 2 and 4 channel MCT-detectors are described for different spectroscopic applications where the fibers are assembled in a bundle for remote spectroscopy and for multispectral analysis of specific targets and characteristic wavelengths.

Paper Details

Date Published: 15 December 2000
PDF: 11 pages
Proc. SPIE 4130, Infrared Technology and Applications XXVI, (15 December 2000); doi: 10.1117/12.409908
Show Author Affiliations
Vjacheslav G. Artioushenko, ART-Photonics GmbH (Germany)
Natalia I. Afanasyeva, Univ. of Nevada/Reno (United States)
Reinhard F. Bruch, Univ. of Nevada/Reno (United States)

Published in SPIE Proceedings Vol. 4130:
Infrared Technology and Applications XXVI
Bjorn F. Andresen; Gabor F. Fulop; Marija Strojnik, Editor(s)

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