Anderson localization in Bragg-guiding arrays with negative defects
Optics
2015-06-11 v2 Pattern Formation and Solitons
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.
Keywords
Cite
@article{arxiv.1208.5922,
title = {Anderson localization in Bragg-guiding arrays with negative defects},
author = {Valery E. Lobanov and Yaroslav V. Kartashov and Victor A. Vysloukh and Lluis Torner},
journal= {arXiv preprint arXiv:1208.5922},
year = {2015}
}
Comments
4 pages, 5 figures, to appear in Optics Letters