Anderson localization in Bragg-guiding arrays with negative defects
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We show that Anderson localization is possible in waveguide arrays with periodically spaced defect waveguides having a 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.
CitationLobanov, V. [et al.]. Anderson localization in Bragg-guiding arrays with negative defects. "Optics letters", Octubre 2012, vol. 37, núm. 19, p. 4020-4022.
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