Anomalous Localization of Light in One-Dimensional Lévy Photonic Lattices

Ramírez-Yañez, Alejandro ; Gorin, Thomas ; Vicencio, Rodrigo A. ; Gopar, Víctor A. (Universidad de Zaragoza)

Resumen: Localization of coherent propagating waves has been extensively studied over the years, primarily in homogeneous random media. However, significantly less attention has been given to wave localization in media with inhomogeneous disorder, where the standard picture of Anderson localization does not apply, as we demonstrate here. We fabricate photonic lattices with inhomogeneous disorder, modeled by heavy-tailed -stable distributions, and measure the output light intensity profiles. We demonstrate that the spatial localization of light is described by a stretched exponential function, with a stretching parameter , and an asymmetric localized profile with respect to the excitation site. We support our experimental and theoretical findings with extensive tight-binding simulations.

Idioma: Inglés

DOI: 10.1103/5bqm-f5tq

Año: 2026

Publicado en: Physical Review Letters 136, 6 (2026), 066304 [7 pp.]
ISSN: 0031-9007

Financiación: info:eu-repo/grantAgreement/ES/MICINN AEI/PID2022-136374NB-C22

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Teórica (Dpto. Física Teórica)