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Stimulated Raman Effect on Plasmons and Longitudinal Plasmon‐Phonons in Simple Cubic Crystals
Author(s) -
Merten L.,
Goltsche W.
Publication year - 1984
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.2221210204
Subject(s) - plasmon , phonon , raman spectroscopy , condensed matter physics , coupling (piping) , transverse plane , surface plasmon , dispersion (optics) , physics , molecular physics , optics , materials science , metallurgy , structural engineering , engineering
It is shown that Stokes and anti‐Stokes waves anharmonically can couple not only with transverse but also with longitudinal quasi‐particles (stimulated Raman effect). As examples the coupling with plasmons and longitudinal plasmon‐phonons in simple cubic crystals is treated. The dispersion functions can be represented by simple analytic expressions, if the coupling with the anti‐Stokes waves is neglected against the coupling with the Stokes waves. In this approximation one “stimulated region” exist for plasmons and two for longitudinal plasmon‐phonons.