Dancing vortices in a driven nematic liquid crystal cell: Theory and experiment

M. G. Clerc, M. Ferré, R. Gajardo-Pizarro, V. Zambra

Research output: Contribution to journalArticlepeer-review

Abstract

The interaction of light beams with helical defects in optical materials generates optical vortices. Understanding and manipulating the dynamics of helical defects allows for the creation of versatile sources of optical vortex beams. Using a magnetic ring on a nematic liquid crystal cell, we trapped helical defects identified as matter vortices. We observe oscillatory rotating and beating matter vortices by applying a low-frequency voltage. Experimentally, we determine the region of parameters where these vortices are observed. The amplitude of oscillatory rotating vortices decays with the inverse of the voltage frequency. We propose an adequate amplitude equation, which allows us to describe the vortex dynamics; theoretical findings have a qualitative agreement with the experimental observations.

Original languageEnglish
Article numberL012201
JournalPhysical Review E
Volume106
Issue number1
DOIs
StatePublished - 1 Jul 2022
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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