Browsing by Author "Szameit, Alexander"

Now showing items 1-3 of 3

    • Enhanced distribution of a wave-packet in lattices with disorder and nonlinearity 
      Naether, Uta; Rojas Rojas, Santiago; Martínez, Alejandro J.; Stützer, Simon; Tünnermann, Andreas; Nolte, Stefan; Molina Gálvez, Mario; Vicencio Poblete, Rodrigo; Szameit, Alexander (Optical Society of America, 2013-01)
      We show, numerically and experimentally, that the presence of weak disorder results in an enhanced energy distribution of an initially localized wave-packet, in one- and two-dimensional finite lattices. The addition of ...
    • Observation of a Localized Flat-Band State in a Photonic Lieb Lattice 
      Vicencio Poblete, Rodrigo; Cantillano, Camilo; Morales Inostroza, Luis; Real, Bastián; Mejía Cortés, Cristian; Weimann, Steffen; Szameit, Alexander; Molina Gálvez, Mario (American Physical Society, 2015)
      We demonstrate the first experimental realization of a dispersionless state, in a photonic Lieb lattice formed by an array of optical waveguides. This engineered lattice supports three energy bands, including a perfectly ...
    • Observation of localized modes at phase slips in two-dimensional photonic lattices 
      Szameit, Alexander; Molina Gálvez, Mario; Heinrich, Matthias; Dreisow, Felix; Keil, Robert; Nolte, Stefan; Kivshar, Yuri S. (OPTICAL SOC AMER, 2010-08-15)
      We study experimentally light localization at phase-slip waveguides and at the intersection of phase-slips in a two-dimensional (2D) square photonic lattice. Such system allows to observe a variety of effects, including ...