Random resonators and prelocalized modes in disordered dielectric films

We calculate the areal density of disorder-induced resonators with a high quality factor, Q>>1, in a film with fluctuating refraction index. We demonstrate that, for a given kl>1, where k is the light wave vector and l is the transport mean-free path, when on average the light propagation i...

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Bibliographic Details
Published in:Physical review letters 2002-07, Vol.89 (1), p.016802-016802, Article 016802
Main Authors: Apalkov, V M, Raikh, M E, Shapiro, B
Format: Article
Language:English
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Summary:We calculate the areal density of disorder-induced resonators with a high quality factor, Q>>1, in a film with fluctuating refraction index. We demonstrate that, for a given kl>1, where k is the light wave vector and l is the transport mean-free path, when on average the light propagation is diffusive, the likelihood for finding a random resonator increases dramatically with increasing the correlation radius of the disorder. Parameters of most probable resonators as functions of Q and kl are found.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.89.016802