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Zur Quantentheorie der stimulierten R AMAN ‐Streuung in Molekülkristallen. I. Einige Bemerkungen zur Theorie nach K. G ROB
Author(s) -
Welsch Dirk
Publication year - 1972
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19724830305
Subject(s) - physics , polariton , quantization (signal processing) , scattering , raman scattering , photon , quantum , quantum mechanics , phonon , condensed matter physics , atomic physics , raman spectroscopy , computer science , computer vision
Stimulated R AMAN scattering in molecular crystals is quantum theoretically described as stimulated polariton scattering. The quantum theoretical treatment of molecular crystals is given within the framework of a second quantization described in an earlier work. In the H EISENBERG picture the equations of motion for the operators of the polaritons are derived and specialized for R AMAN scattering. By supposing quasi‐stationary behaviour the operators of the polaritons that are mixtures of phonons and photons are eliminated. The resulting equations are shown to have the same structure but a generalized physical meaning as those derived by G ROB on other way.