Title :
Photoacoustic gas spectroscopy using a tunable solid state laser emitting around 2.4 /spl mu/m
Author :
Fischer, C. ; Sorokin, E. ; Sorokina, I.T. ; Sigrist, M.
Author_Institution :
Inst. of Quantum Electron., ETH, Zurich, Switzerland
Abstract :
We present the first trace-gas measurements using a novel Cr/sup 2+/:ZnSe laser source emitting in the 2.4 /spl mu/m wavelength region. The detection limits are in the sub-ppmV to few ppmV range. Examples of measurements of ambient air are presented.
Keywords :
air pollution measurement; chromium; gas sensors; infrared spectroscopy; laser tuning; photoacoustic spectroscopy; remote sensing by laser beam; solid lasers; spectrochemical analysis; 2.4 mum; Cr/sup 2+/:ZnSe laser source; ZnSe:Cr; air pollution monitoring; ambient air; gas spectroscopy; photoacoustic spectroscopy; solid state laser; trace-gas measurements; tunable laser;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
