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

Autor:	R. F. Curl, Daniel Hofstetter, Anatoliy A. Kosterev, Jérôme Faist, Frank K. Tittel, Mattias Beck, Michel Rochat
Rok vydání:	2002
Předmět:	Materials science Thermoelectric cooling Physics and Astronomy (miscellaneous) Absorption spectroscopy business.industry Detector General Engineering General Physics and Astronomy Laser law.invention Pyroelectricity Wavelength Optics law Gas detector Quantum cascade laser business
Zdroj:	Applied Physics B: Lasers and Optics. 75:351-357
ISSN:	1432-0649 0946-2171
Popis:	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 CO2 and H2O were observed in ambient air, providing information about the concentration of these species.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91962743cd4c79a1a27ea16f3a31aeeb https://doi.org/10.1007/s00340-002-0963-z Zobrazit plný text záznamu Plný text ve formátu PDF