Open AccessPhase dynamics of continuous topological upconversion in vortex beams
Author(s) -
Carlos López-Mariscal,
Daniel R. Burnham,
Daniel Rudd,
David McGloin,
Julio C. Gutiérrez-Vega
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.011411
Subject(s) - optical vortex , bessel function , angular momentum , vortex , physics , optics , field (mathematics) , bessel beam , phase (matter) , beam (structure) , gravitational singularity , classical mechanics , quantum mechanics , mathematics , mechanics , pure mathematics
The vortex emergence process as an integer order Bessel field progresses continuously onto the contiguous higher order Bessel field is studied in detail. We assess the progressive migration of phase singularities and explain the predicted increase in fractional orbital angular momentum content of the beam in terms of this gradual process.