The shape and width of resonance Raman spectral lines
โ Scribed by J. Behringer
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 852 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0377-0486
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โฆ Synopsis
Abstract
Presupposing exponentially decaying states (with phenomenological lifetimes) of the particle system interacting with the radiation field, the shape and width of Raman lines is discussed on a quantumโmechanical basis for the most important types of excitation: nonโresonance, preโresonance, rigorous resonance with a continuum level and with a discrete, nonโdegenerate, and isolated level; monochromatic and nonโmonochromatic irradiation. Attention is called to peculiar intensity distributions of the secondary radiation obtainable by sufficiently monochromatic excitation in near resonance to an isolated state (resonance fluorescence case) which deviate characteristically from those customary in traditional fluorescence and scattering spectra.
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The theory of line-shape analysis of Raman bands in terms of a molecular reorientation correIation function and vibrational relaxation is extended to be applicable to resonant Raman spectroscopy (RRS) where the Raman tensor may be un-symmetric\_ A line shape analysis of the spectral power density is
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