Collisional broadening and shifting of ammonia absorption lines at 790 nm

Year: 2003

Authors: Lucchesini A., Gozzini S.

Autors Affiliation: IPCF-CNR, Area Ricerca Pisa,Via G Moruzzi 1, I-56124 Pisa, Italy.

Abstract: By using a diode laser spectrometer based on a commercial heterostructure diode laser operating in free-running mode, line shape parameters of some ammonia ro-vibrational overtones at 790 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 for ten absorption lines by fitting the collected second-harmonic absorption features and varying the pressure of different buffer gases.


Volume: 22 (2)      Pages from: 209  to: 215

KeyWords: spettroscopia molecolare; diodi laser; larghezze di riga; ammoniaca;
DOI: 10.1140/epjd/e2002-00240-x

Citations: 7
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