Local phase structure of wave dislocation lines: twist and twirl
Local phase structure of wave dislocation lines: twist and twirl
Generic wave dislocations (phase singularities, optical vortices) in three dimensions have anisotropic local structure, which is analysed, with emphasis on the twist of surfaces of equal phase along the singular line, and the rotation of the local anisotropy ellipse (twirl). Various measures of twist and twirl are compared in specific examples, and a theorem is found relating the (quantized) topological twist and twirl for a closed dislocation loop with the anisotropy C line index threading the loop.
phase singularity, optical vortex, screw dislocation, topology
S202-S208
Dennis, M.R.
ff55cf66-eb8b-4eb9-83eb-230c2f223d61
2004
Dennis, M.R.
ff55cf66-eb8b-4eb9-83eb-230c2f223d61
Dennis, M.R.
(2004)
Local phase structure of wave dislocation lines: twist and twirl.
Journal of Optics A: Pure and Applied Optics, 6 (5), .
(doi:10.1088/1464-4258/6/5/011).
Abstract
Generic wave dislocations (phase singularities, optical vortices) in three dimensions have anisotropic local structure, which is analysed, with emphasis on the twist of surfaces of equal phase along the singular line, and the rotation of the local anisotropy ellipse (twirl). Various measures of twist and twirl are compared in specific examples, and a theorem is found relating the (quantized) topological twist and twirl for a closed dislocation loop with the anisotropy C line index threading the loop.
Text
JOA6_S202.pdf
- Version of Record
More information
Published date: 2004
Keywords:
phase singularity, optical vortex, screw dislocation, topology
Identifiers
Local EPrints ID: 29389
URI: http://eprints.soton.ac.uk/id/eprint/29389
ISSN: 1741-3567
PURE UUID: cd855ead-ce4e-4b1c-a1cf-a8ccdf2a1cbe
Catalogue record
Date deposited: 11 May 2006
Last modified: 15 Mar 2024 07:31
Export record
Altmetrics
Contributors
Author:
M.R. Dennis
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics