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Broadband QEPAS with IR-LEDs

 
: Böttger, S.; Willer, U.; Schade, W.

Optical Society of America -OSA-, Washington/D.C.:
Advanced Solid-State Photonics, ASSP 2012. CD-ROM : 29 January - 1 February 2012, Rancho Bernardo Inn, San Diego, California, United States
Washington, DC: OSA, 2012 (OSA Technical digest series)
ISBN: 978-1-55752-933-6
2 S.
Topical Meeting on Advanced Solid-State Photonics (ASSP) <2012, San Diego/Calif.>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()

Abstract
An IR-LED at 3.4 mu m and an off-beam QEPAS cell as detector are utilized for absorption spectroscopy. For 10 cm absorption path a detection limit of 382 ppm is achieved for methane.

: http://publica.fraunhofer.de/dokumente/N-242007.html