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Optical Studies of Nonequilibrium Phonons in Semiconductors

  • A. V. Akimov
  • A. A. Kaplyanskii
  • E. S. Moskalenko
Chapter

Abstract

Over the years luminescence has became a powerful technique for the detection of terahertz acoustic phonons in crystals [1], Used mainly in insulators the method is based on the interaction of nonequilibrium phonons with electronic emitting states of “probe” impurities in photoexcited crystals (such as ruby, doped flourite, etc.). The technique has an advantage over the methods using superconducting devices because of a much wider spectral range of phonon frequencies and the lack of the boundary between the crystal and detector.

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Copyright information

© Plenum Press, New York 1994

Authors and Affiliations

  • A. V. Akimov
    • 1
  • A. A. Kaplyanskii
    • 1
  • E. S. Moskalenko
    • 1
  1. 1.A.F. Ioffe Physical-Technical InstituteSt. PetersburgRussia

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