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Interaction of guided modes and surface polaritons in a planar dielectric waveguide-semiconductor structure

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Abstract

In this work we have observed the interaction of waveguide modes and surface polaritons arising on the surface of a semiconductor in proximity to a dielectric wave-guide. It is shown that at frequencies for which the phase velocities of these waves coincide, there arises a resonant interaction between them, allowing the emergence of a reflected signal in the dielectric waveguide. The amplitude of this signal varies periodically with a change in the length of the semiconductor. The results that have been obtained have been able to be used as a diagnostic for semiconductor materials as well as for the excitation of surface polaritons with the aid of a dielectric waveguide.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 78–83, January, 1989.

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Filippov, Y.F., Yakovenko, V.M. Interaction of guided modes and surface polaritons in a planar dielectric waveguide-semiconductor structure. Soviet Physics Journal 32, 65–70 (1989). https://doi.org/10.1007/BF00896738

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Keywords

  • Phase Velocity
  • Semiconductor Material
  • Waveguide Mode
  • Resonant Interaction
  • Dielectric Waveguide