Theory of coherent Raman scattering with quasi-cw noisy light for a general line shape function

The theory of electronically nonresonant coherent Raman scattering (CRS) with quasi-cw noisy light (I(2) CRS) is developed for a general material response. The (Raman) resonant–resonant and resonant–nonresonant hyperpolarizability contributions to the I(2) CRS signal are interferometrically separabl...

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Bibliographic Details
Published in:The Journal of chemical physics 1997-11, Vol.107 (18), p.7127-7137
Main Authors: Ulness, Darin J., Kirkwood, Jason C., Stimson, Michael J., Albrecht, A. C.
Format: Article
Language:English
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Summary:The theory of electronically nonresonant coherent Raman scattering (CRS) with quasi-cw noisy light (I(2) CRS) is developed for a general material response. The (Raman) resonant–resonant and resonant–nonresonant hyperpolarizability contributions to the I(2) CRS signal are interferometrically separable. It is found that, in general, the interferometric decay of each of these terms exposes the Raman line shape function in a different manner. Only for a Lorentzian line is their decay identical. Thus, in principle, I(2) CRS provides a new way to explore the line shape function that is analytically distinct from frequency domain and time domain methods. By way of illustration, the general theory is applied to three common line shapes: Lorentzian (as in the original I(2) CRS theory), Gaussian, and Voigt. The results are shown to be consistent with the principles of factorized time correlation diagram analysis.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.474954