Diode laser spectroscopy of methyl fluoride overtones at 850 nm

Year: 2013

Authors: Lucchesini A., Gozzini S.

Autors Affiliation: Istituto Nazionale di Ottica, CNR, UOS di Pisa Adriano Gozzini, I-56124 Pisa, Italy

Abstract: One hundred fifty-six (CH3F)-C-12 overtone absorption lines, comprised between 11 545 and 11 836 cm(-1), have been observed by using a tunable diode laser (TDL) spectrometer. Their intensities range around 10(-26) cm/molecule and have been measured by utilizing commercial AlGaAs/GaAs laser diodes through the wavelength modulation (WM) and the 2nd harmonic (2f) detection techniques. Self-broadening coefficients and line strengths have been measured at room temperature for seven of the strongest transitions, while air-broadening coefficients have been obtained for two lines. In addition, self- and air-collisional shifts have been measured for the 11 564.25 cm(-1) transition. (C) 2013 Elsevier Ltd. All rights reserved.


Volume: 130      Pages from: 352  to: 358

More Information: DOI: 10.1016/j.jqsrt.2013.03.014
WOS: 000326482100029
KeyWords: Methyl fluoride; Overtone bands; Line and band widths; Tunable diode laser; Symmetric top molecule
DOI: 10.1016/j.jqsrt.2013.03.014

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