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
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)
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)
R. Brazis and L. Safonova, Electromagnetic wave dispersion in semiconductor-dielectric periodic structures below the plasma frequency, Litovskii fizicheskii sbornik, 3, 285 (1991)
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© 1994 Plenum Press, New York
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Brazis, R., Narkowicz, R., Safonova, L. (1994). Bulk Phonon-Polaritons in Reststrahlen Region of A3B5 Compound Superlattice. In: Paszkiewicz, T., Rapcewicz, K. (eds) Die Kunst of Phonons. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2455-7_5
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DOI: https://doi.org/10.1007/978-1-4615-2455-7_5
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