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Bulk Phonon-Polaritons in Reststrahlen Region of A3B5 Compound Superlattice

  • R. Brazis
  • R. Narkowicz
  • L. Safonova
Chapter

Abstract

Superlattices composed of layers whose dielectric functions ε(v) are of the opposite sign are known to support the propagation of specific electromagnetic modes which are related to a bulk-type polarization [1–3]. The term, bulk modes, is chosen in order to distinguish between the relevant excitations and the interface modes, encountered under similar conditions ε(v)1ε(v)2 < 0. The existence of bulk modes has been confirmed experimentally in InSh/Al2O3 structures in the millimeter wave region [1], where the values of εv for InSb are negative due to the free-carrier plasma (or magnetoplasma) contribution.

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References

  1. [1]
    R. Brazis and L. Safonova, Electromagnetic waves in layered semiconductor-dielectric periodic structures in dc magnetic fields, Int. J. Infrared and MMW Waves, bf 8, 449 (1987)ADSCrossRefGoogle Scholar
  2. [2]
    R. Brazis and L. Safonova, Resonance and absorption band in the classical mag-netoactive semiconductor-insulator superlattice, Proc. Soc. Photo-Opt. Instrum. Eng., 1029, 74 (1988)Google Scholar
  3. [3]
    R. Brazis and L. Safonova, Electromagnetic wave dispersion in semiconductor-dielectric periodic structures below the plasma frequency, Litovskii fizicheskii sbornik, 3, 285 (1991)Google Scholar

Copyright information

© Plenum Press, New York 1994

Authors and Affiliations

  • R. Brazis
    • 1
    • 2
  • R. Narkowicz
    • 2
  • L. Safonova
    • 1
  1. 1.Semiconductor Physics InstituteVilniusLithuania
  2. 2.Polish University at the Association of Polish Scientists of LithuaniaVilniusLithuania

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