2010/05/31 by D. Mogilevtsev, F. A. Pinheiro, Raimundo R. dos Santos +3
Materials Science · Mathematics · Physics and Astronomy · #Anderson localization #Angle of incidence (optics) #Brewster #Brewster's angle #Condensed matter physics #Delocalized electron #Limit (mathematics) #Long wavelength limit #Materials science #Mathematics #Metamaterial #Metamaterials and Metasurfaces Applications #Optics #Photonic Crystals and Applications #Physics #Quantum mechanics #Random lasers and scattering media #Superlattice #Wavelength #cond-mat.dis-nn #physics.optics
paper · pdf · doi:10.1103/physrevb.82.081105
4 two-column pages, 3 figures
arxiv created 2010/05/31 · openalex publication_date 2010/08/23 · arxiv updated 2015/05/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Light propagation through one-dimensional disordered structures composed of alternating layers, with random thicknesses, of air and a dispersive metamaterial is theoretically investigated. We have established that Anderson localization of light may be suppressed: (i) in the long-wavelength limit, for a finite angle of incidence which depends on the parameters of the dispersive metamaterial; (ii) for isolated frequencies and for specific angles of incidence, corresponding to Brewster anomalies in both positive- and negative-refraction regimes of the dispersive metamaterial. On the other hand, in the long-wavelength limit, the localization length tends to a constant value for sufficiently large angles of incidence, in contrast to what is generally expected for disordered systems. We also find that delocalization at the very edge of a band gap is possible, a result which could be explored to observe slow light propagation in disordered photonic structures.