Browsing by Author "79fc2bb8-cbb1-4928-934e-6ecb30543a58"

Now showing items 1-6 of 6

    • Berry Phase of Light under Bragg Reflection by Chiral Liquid-Crystal Media 
      Barboza, Raouf; Bortolozzo, Umberto; Clerc Gavilán, Marcel; Residori, Stefania (Amer Chemical Society, 2016)
      A Berry phase is revealed for circularly polarized light when it is Bragg reflected by a chiral liquid-crystal medium of the same handedness. By using a chiral nematic layer we demonstrate that if the input plane of the ...
    • Colorimetry characterization of molecular reorientation transition in thin nematic cells 
      Morel, Jean Paul; Bortolozzo, Umberto; Clerc Gavilán, Marcel; Jullien, A.; Residori, S. (American Institute of Physics, 2020)
      The characterization of equilibria and their transition is fundamental in dynamic systems. Experimentally, the characterization of transitions is complex due to time scales separation, the effect of thermal fluctuations, ...
    • Effects of translational coupling on dissipative localized states 
      Campo, F. del; Haudin, F.; Rojas, R. G.; Bortolozzo, Umberto; Clerc Gavilán, Marcel; Residori, S. (2012)
      Nonequilibrium localized states under the influence of translational coupling are studied experimentally and theoretically. We show that localized structures are deformed and advected in the direction of the coupling, ...
    • Light-matter interaction induces a shadow vortex 
      Barboza, R.; Bortolozzo, Umberto; Clerc Gavilán, Marcel; Dávila Bonczos, Juan; Kowalczyk, Michal; Residori, S.; Vidal Henríquez, Estefanía (Amer Physical Soc, 2016)
      By sending a light beam on a homeotropic nematic liquid-crystal cell subjected to a voltage with a photosensitive wall, a stable matter vortex can be induced at the center of the beam. When the applied voltage is decreased, ...
    • Spontaneous light-induced Turing patterns in a dye-doped twisted nematic layer 
      Andrade Silva, Ignacio Javier; Bortolozzo, Umberto; Clerc Gavilán, Marcel; González Cortés, Gregorio; Residori, Stefania; Wilson, Mario (Nature Publishing Group, 2018)
      © 2018, The Author(s). Optical pattern formation is usually due either to the combination of diffraction and nonlinearity in a Kerr medium or to the temporal modulation of light in a photosensitive chemical reaction. Here, ...
    • Umbilical defect dynamics in an inhomogeneous nematic liquid crystal layer 
      Zambra, Valeska; Clerc Gavilán, Marcel; Barboza, Raouf; Bortolozzo, Umberto; Residori, Stefania (Amer Physical Soc, 2020)
      Electrically driven nematic liquid crystals layers are ideal contexts for studying the interactions of local topological defects, umbilical defects. In homogeneous samples the number of defects is expected to decrease ...