Detection of HCl on the first and second overtone using semiconductor diode lasers at 1.7 µm and 1.2 µm

Year: 1999

Authors: Corsi C., Inguscio M., Chudzynski S., Ernst K., D’Amato F., De Rosa M.

Autors Affiliation: Dipartimento di Scienze Neurologiche, Università di Firenze, Viale Morgagni 85, 50134 Firenze, Italy; Dipartimento di Fisica, Università di Firenze, Largo E. Fermi 2, 50125 Firenze, Italy; Institute of Experimental Physics, Warsaw University, Warsaw, Poland; ENEA, INN-FIS-SPET, Via E. Fermi 45, 00044 Frascati, Italy; SIT, Via Masaccio 116, Firenze, Italy

Abstract: Using a semiconductor diode laser spectrometer, HCl absorption is studied on the first (2v) and second (3v) overtones at 1.7 micron and 1.2 micron, respectively. The P(3) component at 1207.91 nm and the R(3) component at 1742.38 nm are investigated at different gas pressures, in order to extract the self-broadening parameters.
Sensitivity studies are also performed, to evaluate the minimum detectable concentration of HCl in air.

Journal/Review: APPLIED PHYSICS B-LASERS AND OPTICS

Volume: 68 (2)      Pages from: 267  to: 269

KeyWords: Hydrochloric acid; Light absorption; Spectrometers; Semiconductor diode laser spectrometers; Semiconductor lasers
DOI: 10.1007/s003400050616

Citations: 12
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