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Theoretical analysis of resonant Raman scattering by 2LO phonons
Author(s) -
Semenova L. E.,
Prokhorov K. A.
Publication year - 2001
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.780
Subject(s) - raman spectroscopy , raman scattering , phonon , resonance (particle physics) , exciton , photon , x ray raman scattering , chemistry , order (exchange) , coherent anti stokes raman spectroscopy , function (biology) , molecular physics , atomic physics , physics , condensed matter physics , quantum mechanics , finance , evolutionary biology , economics , biology
A detailed theoretical treatment of the second‐order Raman efficiency is given for incident photon energies below an excitonic resonance. The Wannier excitons are considered as intermediate states in the scattering process. By using the Green's function method, the expression for the Raman efficiency is obtained. The contributions of the two sequences of the intermediate states, s – s – s and s – p – s , are analyzed. The second‐order Raman efficiency is calculated for CdS. Copyright © 2001 John Wiley & Sons, Ltd.