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Light Scattering by Collective Excitations in Dielectrics and Semiconductors

  • E. Burstein
  • A. Pinczuk

Abstract

The early experimental and theoretical investigations of spontaneous Raman scattering in solids were concerned with first and second order Raman scattering by lattice vibrations which provided information about the frequencies and symmetries of the long wavelength (q ≈ 0) modes as well as information about modes at two phonon density of states “critical points” in the Brillouin zone. Largely, as a result of the availability of cw lasers, covering a range of frequencies extending from the infrared to the ultraviolet, and improved photo-detectors and associated electronics, these investigations have now been extended to essentially all of the other “low energy” excitations in solids, namely to plasmons and their linearly coupled modes with LO phonons, polaritons (coupled TO phonon-photon modes), excitons, magnons and their linearly coupled modes with acoustic phonons, single particle electron-hole pair excitations, and vibrational and electronic excitation of impurities.1 Furthermore, they have been extended to opaque solids, i.e., metals and narrow gap semiconductors.

Keywords

Optical Phonon Collective Excitation Surface Electric Field Phonon Peak Morphic Effect 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • E. Burstein
    • 1
  • A. Pinczuk
    • 1
  1. 1.Physics Department and Laboratory for Research on the Structure of MatterUniversity of PennsylvaniaPhiladelphiaUSA

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