Premium
‘Extra’ resonances in non‐linear Raman spectroscopy
Author(s) -
Kircheva P. P.,
Simeonov S. D.
Publication year - 1985
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.1250160504
Subject(s) - raman spectroscopy , coherent anti stokes raman spectroscopy , raman scattering , resonance (particle physics) , x ray raman scattering , relaxation (psychology) , spectral line , chemistry , excitation , molecular physics , atomic physics , spectroscopy , polyatomic ion , harmonic oscillator , nuclear magnetic resonance , analytical chemistry (journal) , molecule , optics , physics , quantum mechanics , psychology , social psychology , organic chemistry , chromatography
In the treatment of absorption spectra and Raman excitation profiles of polyatomic molecules, relaxation constants appear as ‘soft’ parameters. It is shown that the spectra of non‐linear Raman scattering under resonance pumping conditions are sensitive to variations in the relaxation constants and the number of active vibrations, especially when ‘extra’ resonances are included. This is demonstrated by calculations of coherent Stokes Raman scattering spectra carried out using the density of states model and displaced independent harmonic oscillators. The use of non‐linear Raman spectra for checking the reliability of the model descriptions of S 0 – S 1 transitions is proposed.