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Chemical sensing with pulsed QC-DFB lasers operating at 15.6 μm

Auteur(s)
Kosterev, A. A.
Curl, R. F.
Tittel, F. K.
Rochat, Michel
Beck, Mattias
Hofstetter, Daniel 
Institut de physique 
Faist, Jérôme
Date de parution
2002
In
Applied Physics B: Lasers and Optics, Springer, 2002/75/2-3/351-357
Résumé
Pulsed thermoelectrically cooled QC-DFB lasers operating at 15.6 μm were characterized for spectroscopic gas sensing applications. A new method for wavelength scanning based on repetition rate modulation was developed. A non-wavelength-selective pyroelectric detector was incorporated in the sensor configuration giving the advantage of room-temperature operation and low cost. Absorption lines of CO<sub>2</sub> and H<sub>2</sub>O were observed in ambient air, providing information about the concentration of these species.
Identifiants
https://libra.unine.ch/handle/123456789/16645
_
10.1007/s00340-002-0963-z
Type de publication
journal article
Dossier(s) à télécharger
 main article: Kosterev_A._A._-_Chemical_sensing_with_pulsed_QC-DFB_lasers_20080522.pdf (556.72 KB)
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