Quartz-enhanced photoacoustic spectroscopy (QEPAS) was combined with a wavelength-programmable near-IR tunable laser source to realize a compact prototype chemical gas sensor for multi-species analysis. The best QEPAS sensitivity achieved to date is /spl sim/4/spl times/10/sup -8/ cm/sup -1/ W//spl radic/Hz.
Multi-species QEPAS based gas sensing using a wavelength-programmable diode laser source
Conference on Lasers and Electro-Optics, 2004. (CLEO). ; 1 ; 2 pp. vol.1
2004-01-01
137440 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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