Measurments of collisional line widths in the stimulated Raman  Q ‐branch of the ν 1  band of silane | Zendy

Millot G. | Zendy; Boutahar A. | Zendy; Lavorel B. | Zendy; Wenger C. | Zendy; SaintLoup R. | Zendy; Berger H. | Zendy

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Measurments of collisional line widths in the stimulated Raman Q ‐branch of the ν 1 band of silane

Author(s) -

Millot G.,

Boutahar A.,

Lavorel B.,

Wenger C.,

SaintLoup R.,

Berger H.

Publication year - 1990

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1250211207

Subject(s) - raman spectroscopy , line (geometry) , chemistry , spectral line , atomic physics , quantum number , torr , analytical chemistry (journal) , silane , mixing (physics) , physics , optics , geometry , mathematics , chromatography , astronomy , quantum mechanics , thermodynamics , organic chemistry

Self‐broadened widths of 28 SiH 4 in the ν 1 Q ‐branch have been measured at room temperature (295 K) using high‐resolution stimulated Raman Spectroscopy. These collisional widths have been obtained by fitting a super‐position of Voigt profiles to the experimental spectra in the pressure range 28–154 Torr. No evidence for line mixing within the tetrahedral components of a Q ( J ) line has been found. The line broadening coefficients for J up to 13 depend weakly on the rotational quantum number. The mean value is 103.7 × 10 −3 cm −1 atm −1 .

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