| Literature DB >> 12599401 |
A A Kosterev1, R F Curl, F K Tittel, M Rochat, M Beck, D Hofstetter, J Faist.
Abstract
Pulsed thermoelectrically cooled QC-DFB lasers operating at 15.6 micrometers 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 CO2 and H2O were observed in ambient air, providing information about the concentration of these species.Entities:
Keywords: NASA Discipline Life Sciences Technologies; Non-NASA Center
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Year: 2002 PMID： 12599401 DOI： 10.1007/s00340-002-0963-z
Source DB: PubMed Journal: Appl Phys B ISSN： 0946-2171 Impact factor: 2.070