Open AccessInteraction between optical vortices carrying opposite topological charges
Author(s) -
Liangwei Dong,
Fangwei Ye,
Jiandong Wang,
Yongping Li
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3353
Subject(s) - physics , vortex , topological defect , dislocation , instability , topological quantum number , optical vortex , topology (electrical circuits) , symmetry (geometry) , field (mathematics) , condensed matter physics , classical mechanics , quantum mechanics , geometry , mechanics , mathematics , combinatorics , pure mathematics
The interaction between two optical vortices in a linear medium is investigated numerically. An instability resembling the symmetrybreaking instability occurs when the vortices carry opposite topological charges. The screw dislocations wi ll evolve into another type of dislocationedge dislocation with the propagatin g of optical field. The sum of the topological charges conserves in the whole pr ocess.