THE THEORY OF RAMAN SCATTERING BY IMPURE CRYSTAL. THE RESONANCE CASE,

Abstract

The resonance Raman spectrum of an impure crystal is analyzed in the adiabatic and Condon approximations with allowance for the anharmonicity of the lattice vibrations but neglecting variations in force constants in various electron states. The spectral intensities are calculated for two cases: (1) the incident light frequency omega being in the region of pure-electron transition and (2) omega falling in the region of the phonon wing, assuming the Stokes-shifts are appreciable. In the latter case, a quasi-linear structure of the spectrum may be observed, which makes it possible to use the resonance Raman spectra for studying the dynamics of impurity centers with appreciable Stokes-shifts.

Document Details

Document Type
Technical Report
Publication Date
Dec 03, 1968
Accession Number
AD0695883

Entities

People

  • I. Yu. Tekhver

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Crystal Lattice Vibrations
  • Crystal Lattices
  • Diffraction
  • Electron Transitions
  • Electrons
  • Frequency
  • Raman Scattering
  • Raman Spectra
  • Resonance
  • Scattering
  • Spectra
  • Transitions

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Spectroscopy.

Technology Areas

  • Microelectronics