6533b862fe1ef96bd12c60df

RESEARCH PRODUCT

Measurments of collisional line widths in the stimulated Raman Q-branch of the ν1 band of silane

Hubert BergerC. WengerA. BoutaharR. Saint-loupGuy MillotBruno Lavorel

subject

chemistry.chemical_classificationChemistryAnalytical chemistryQuantum numberSpectral linesymbols.namesakeTorrsymbolsGeneral Materials ScienceAtomic physicsRaman spectroscopySpectroscopyInorganic compoundSpectroscopyRaman scatteringLine (formation)

description

Self-broadened widths of 28SiH4 in the ν1Q-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.

https://doi.org/10.1002/jrs.1250211207