Theory of Resonant Light Scattering Processes in Solids
A survey is presented of some recent work on the theory of resonant Brillouin and Raman scattering in insulating solids. The major themes which are examined are the effect of intermediate state interactions, and effects of spatial dispersion.
KeywordsAcoustic Phonon Spatial Dispersion Incident Frequency Infinite Crystal Polariton Branch
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- 1.“Light Scattering in Solids” ed. M. Balkanski (Flammarion, Paris 1971). Proceedings of the Second International Conference on Light Scattering held in Paris, July 1971. This contains papers dealing with most of the active topics. This volume can serve as a general reference for the present survey.Google Scholar
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- 17.A slowly varying factor of ω4 is neglected in Eqs.(3.3), (3.4), (3.5), (3.8), (3.9) since this is not important near resonance.Google Scholar
- 18.The second term in Eq.(4.9) can be written: X1R(o)G+ (ξ) where R is the reflectivity of the exciton, Xi and G+ are defined in Eqs.(4.5), (4.6) and ξ ≡ [(X−X′)2+ (y−y)2+ (z+z′)1/2.Google Scholar