Water vapor overtones pressure line broadening and shifting measurements

Year: 2000

Authors: Lucchesini A., Gozzini S., Gabbanini C.

Autors Affiliation: CNR, Ist Fis Atom & Mol, Via Giardino 7, I-56127 Pisa, Italy.

Abstract: By using a spectrometer having as source a commercial etherostructure AlxGa1-xAs diode laser operating in \”free-running mode\”, line shape parameters of some water vapor re-vibrational overtones at 820-830 nm have been measured at room temperature. These weak absorption lines have been detected by using the wavelength modulation spectroscopy technique with second-harmonic detection. The broadening and shifting coefficients have been obtained by fitting the collected second-harmonic absorption features while varying the pressure of different foreign gases.


Volume: 8 (2)      Pages from: 223  to: 226

More Information: WOS: 000085276700012
KeyWords: Line and band widths, shapes, and shifts; Infrared spectra; Infrared spectrometers; Laser diode; Water vapor
DOI: 10.1007/s10053-000-8807-z

Citations: 41
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