Optical solitary waves escaping a wide trapping potential in nematic liquid crystals: Modulation theory

Gaetano Assanto, Antonmaria A. Minzoni, Marco Peccianti, Noel F. Smyth

Research output: Contribution to journalArticlepeer-review

Abstract

A nonlinear extension of geometric optics is used to derive a modulation theory solution for the trajectory of an optical solitary wave in a nematic liquid crystal-i.e., a nematicon-in which a wide waveguide has been defined by an externally applied static electric field. This solution is used to find the power threshold for the solitary wave to escape the trapping waveguide. This threshold is found to be in excellent agreement with experimental results.

Original languageEnglish
Article number033837
Number of pages5
JournalPhysical Review A
Volume79
Issue number3
DOIs
Publication statusPublished - Mar 2009

Keywords

  • electro-optical effects
  • geometrical optics
  • nematic liquid crystals
  • optical materials
  • optical solitons
  • optical waveguides
  • radiation pressure
  • LIGHT-BEAM PROPAGATION
  • SPATIAL SOLITONS
  • NONLINEAR INTERFACES
  • REFLECTION
  • REFRACTION
  • PARTICLE

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