Browsing by Author "Rojas Rojas, Santiago"

Now showing items 1-5 of 5

    • Analytical model for polarization-dependent light propagation in waveguide arrays and applications 
      Rojas Rojas, Santiago; Morales Inostroza, Luis; Naether, U.; Xavier, G. B.; Nolte, S.; Szameit, A.; Vicencio Poblete, Rodrigo; Lima, G.; Delgado, A. (American Physical Society, 2014)
      © 2014 American Physical Society. We study the polarization properties of elliptical femtosecond-laser-written waveguide arrays. An analytical model is presented to explain the asymmetry of the spatial transverse profiles ...
    • 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 ...
    • Nonlinear localized modes in dipolar Bose-Einstein condensates in optical lattices 
      Rojas Rojas, Santiago; Vicencio Poblete, Rodrigo; Molina Gálvez, Mario; Abdullaev, F. Kh (2011)
      Modulational instability and discrete matter wave solitons in dipolar BECs, loaded into a deep optical lattice, are investigated analytically and numerically. The process of modulational instability of nonlinear plane ...
    • Nonlinear localized modes in dipolar Bose-Einstein condensates in two-dimensional optical lattices 
      Rojas Rojas, Santiago; Naether, Uta; Delgado, Aldo; Vicencio Poblete, Rodrigo (Elsevier B.V., 2016)
      © 2016 Elsevier B.V. We analyze the existence and properties of discrete localized excitations in a Bose-Einstein condensate loaded into a periodic two-dimensional optical lattice, when a dipolar interaction between atoms ...
    • Observation of dipolar transport in one-dimensional photonic lattices 
      Cantillano, Camilo; Morales Inostroza, Luis; Real, Bastián; Rojas Rojas, Santiago; Delgado, Aldo; Szameit, Alexander; Vicencio, Rodrigo A. (Elsevier, 2017)
      We experimentally study the transport properties of dipolar and fundamental modes on one dimensional (1D) coupled waveguide arrays. By carefully modulating a wide optical beam, we are able to effectively excite dipolar or ...