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Barboza R, Bortolozzo U, Clerc MG, et al. Light-matter interaction induces a shadow vortex. Phys Rev E. 2016;93(5):050201doi: 10.1103/PhysRevE.93.050201.
Barboza, R., Bortolozzo, U., Clerc, M. G., Davila, J. D., Kowalczyk, M., Residori, S., & Vidal-Henriquez, E. (2016). Light-matter interaction induces a shadow vortex. Physical review. E, 93(5), 050201. https://doi.org/10.1103/PhysRevE.93.050201
Barboza, R, et al. "Light-matter interaction induces a shadow vortex." Physical review. E vol. 93,5 (2016): 050201. doi: https://doi.org/10.1103/PhysRevE.93.050201
Barboza R, Bortolozzo U, Clerc MG, Davila JD, Kowalczyk M, Residori S, Vidal-Henriquez E. Light-matter interaction induces a shadow vortex. Phys Rev E. 2016 May;93(5):050201. doi: 10.1103/PhysRevE.93.050201. Epub 2016 May 16. PMID: 27300814.
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Phys Rev E. 2016 May;93(5):050201. doi: 10.1103/PhysRevE.93.050201. Epub 2016 May 16.

Light-matter interaction induces a shadow vortex.

Physical review. E

R Barboza, U Bortolozzo, M G Clerc, J D Davila, M Kowalczyk, S Residori, E Vidal-Henriquez

Affiliations

  1. Departamento de Física, FCFM, Universidad de Chile, Casilla 487-3, Santiago, Chile.
  2. Institut Non Linéaire de Nice, Université de Nice-Sophia Antipolis, CNRS, 1361 Route des Lucioles, 06560 Valbonne, France.
  3. Departamento de Ingeniería Matemática and Centro de Modelamiento Matemático (UMI 2807 CNRS), FCFM, Universidad de Chile, Casilla 170 Correo 3, Santiago, Chile.
  4. Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, D-37077 Göttingen, Germany.

PMID: 27300814 DOI: 10.1103/PhysRevE.93.050201

Abstract

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, the vortex disappears from the illuminated region; however, the system shows a stationary molecular texture. Based on a forced Ginzburg-Landau amplitude equation, we show that the vortex with a core of exponentially suppressed amplitude always remains in a shadow region below instability threshold and that the observed texture is induced by its phase distribution. This is a different type of vortex phase singularity solution. Numerical simulations and experimental observations show a quite fair agreement.

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