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Generalized Formulae of Frequency Dispersion and Raman Scattering Cross‐Section of Phonon‐Polaritons
Author(s) -
Jiang YiJian,
Liao LiJi,
Chen Gang,
Zhang PengXiang
Publication year - 1989
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221560115
Subject(s) - triclinic crystal system , dispersion relation , monoclinic crystal system , raman scattering , polariton , phonon , dispersion (optics) , physics , optics , raman spectroscopy , scattering , condensed matter physics , quantum mechanics , molecule
Based upon the work of Born and Huang, the general dispersion relation for long‐wave phononpolaritons of Borstel and Claus is retreated as a result of crystal optics. The dispersion relation is a generalized Fresnel's equation and can be used in monoclinic and triclinic crystals. And a generalized formula of the differential cross‐section of Raman scattering by phonon‐polaritons is derived by way of fluctuation dissipation theory. This formula is applicable to monoclinic and triclinic crystals as well.