6533b824fe1ef96bd127ff8b
RESEARCH PRODUCT
Collisional shifting and broadening coefficients for the rovibrational anisotropic S(J) lines of nitrogen studied by inverse Raman spectroscopy
Bruno LavorelGuy MillotGil Fanjouxsubject
SCALING ANALYSISChemistryRANGEInversechemistry.chemical_elementN2Rotational–vibrational spectroscopyNitrogenQ-BRANCHN-2OXYGENsymbols.namesakeDEPENDENCEsymbolsSPECTRASCATTERINGGeneral Materials ScienceCoherent anti-Stokes Raman spectroscopyAtomic physicsAnisotropyRaman spectroscopyTEMPERATURESpectroscopydescription
0377-0486; Line shifting and broadening coefficients of the anisotropic S(J) lines (v = 0, J --> v = 1, J + 2) of the nitrogen molecule were measured at room temperature using high-resolution stimulated Raman spectroscopy. A rotational quantum number dependence of the S(J) line shifts was observed. In order to avoid an asymmetry of experimental origin, a suitable theoretical profile was fitted to the experimental lineshapes. This study allows the testing of the theoretical methods for calculating the line broadening coefficients in anisotropic Raman scattering, which have already been used in the analysis of infrared absorption data. The behaviour of the modified sum rule and the RPA (random phase approximation) methods was studied.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-06-01 |