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    Université de Fribourg

    Unequivocal signatures of the crossover to Anderson localization in realistic models of disordered quasi-one-dimensional materials

    Lopez-Bezanilla, Alejandro ; Froufe-Pérez, Luis S. ; Roche, Stephan ; Sáenz, Juan José

    In: Physical Review B, 2018, vol. 98, no. 23, p. 235423

    The only unequivocal known criterion for single-parameter scaling Anderson localization relies on the knowledge of the full conductance statistics. To date, theoretical studies have been restricted to model systems with symmetric scatterers, hence lacking universality. We present an in-depth statistical study of conductance distributions P(g), in disordered ‘micrometer-long’ carbon...

    Université de Fribourg

    Band gap formation and Anderson localization in disordered photonic materials with structural correlations

    Froufe-Pérez, Luis S. ; Engel, Michael ; Sáenz, Juan José ; Scheffold, Frank

    In: Proceedings of the National Academy of Sciences, 2017, vol. 114, no. 36, p. 9570–9574

    Disordered dielectric materials with structural correlations show unconventional optical behavior: They can be transparent to long-wavelength radiation, while at the same time have isotropic band gaps in another frequency range. This phenomenon raises fundamental questions concerning photon transport through disordered media. While optical transparency in these materials is robust against...