ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)

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Blioh J. P. Accidental resonators. Izvestiya VUZ. Applied Nonlinear Dynamics, 2012, vol. 20, iss. 4, pp. 85-97. DOI: 10.18500/0869-6632-2012-20-4-85-97

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Accidental resonators

Blioh Jurij Pavlovich, Israel Institue of Technology "Technion"

Anderson localization of electromagnetic waves incident on a disordered medium manifests itself in exponential decrease of the wave amplitude inwards the medium. Transparency of the medium is exponentially small if the medium thickness is large enough. However, there is a set of frequencies (resonances), specific for every random realization of the disordered medium, for which the medium is almost transparent. These sets are «fingerprints» of the media: every realization is characterized by its own unique set of resonances. Any resonance is associated with accidently formed resonator: accidently transparent region («cavity») surrounded by almost non-transparent (due to the wave localization) «walls». This unambiguous correspondence allows determination of the medium parameters and the wave amplitude distribution within the given sample of randomly disordered medium using externally measured characteristics of the resonances.

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