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Radiative spectra of thermal electromagnetic noise induced by planar realistic dielectrics

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Central European Journal of Physics

Abstract

Spectral characteristics of stochastic fields and their spatial derivatives in various planar structures composed by lossy materials described by realistic dielectric functions are numerically calculated based on solutions to the problems of multipolar electromagnetic fields in a plane layered geometry. A displacement of the maximum of the spectral power densities for spatial derivatives of fluctuating fields to the high-frequency domain, a resonant increase in the density of states of the fluctuating fields at the frequencies of interface excitations and interference modes for the radiative part of the spectra, the influence of geometry on the density of states, and other peculiarities are found by numerical calculations and graphically demonstrated. Interpretations of the above effects are provided.

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Authors and Affiliations

  1. Institute for Physics of Microstructures RAS, 603600 Nyzhny Novgorod, GSP-105, Russia

    Illarion Dorofeyev & Katja Sobakinskaya

  2. Westfälische Wilhelms-Universität, Wilhelm-Klemm-Str. 10, D-48149, Münster, Germany

    Harald Fuchs

Authors
  1. Illarion Dorofeyev
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  2. Harald Fuchs
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  3. Katja Sobakinskaya
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Dorofeyev, I., Fuchs, H. & Sobakinskaya, K. Radiative spectra of thermal electromagnetic noise induced by planar realistic dielectrics. centr.eur.j.phys. 3, 351–375 (2005). https://doi.org/10.2478/BF02475643

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  • DOI: https://doi.org/10.2478/BF02475643

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