Observation of the dynamical inversion of the topological charge of an optical vortex

Gabriel Molina-Terriza, Jaume Recolons, Juan P. Torres, Lluis Torner, Ewan M. Wright

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We report what is believed to be the first detailed experimental observation of the dynamic inversion of the topological charge of an optical vortex under free-space propagation. The vortex self-transformation occurs through continuous deformation of the noncanonical strength of the corresponding screw wave front dislocation, and is mediated by the occurrence of an extremely sharp turn in a Berry vortex trajectory, which observed at a Freund critical foliation appears as an edge-line dislocation orthogonal to the propagation direction, at a crucial point of the light evolution.

Original languageEnglish (US)
JournalPhysical review letters
Volume87
Issue number2
DOIs
StatePublished - Jun 22 2001

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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