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arXiv · 1208.5922

Anderson localization in Bragg-guiding arrays with negative defects

Valery E. Lobanov·Yaroslav V. Kartashov·Victor A. Vysloukh·Lluis Torner
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Abstract

We show that Anderson localization is possible in waveguide arrays with periodically-spaced defect waveguides having lower refractive index. Such localization is mediated by Bragg reflection, and it takes place even if diagonal or off-diagonal disorder affects only defect waveguides. For off-diagonal disorder the localization degree of the intensity distributions monotonically grows with increasing disorder. In contrast, under appropriate conditions, increasing diagonal disorder may result in weaker localization.

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Valery E. Lobanov, Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner. 2012-09-04. Anderson localization in Bragg-guiding arrays with negative defects. https://doi.org/10.1364/ol.37.004020

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