| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1863164 | Physics Letters A | 2011 | 6 Pages |
Abstract
The properties of a pair of vortices embedded in a Gaussian beam focused by a high numerical-aperture are studied on the basis of vector Debye integral. The vortices move and rotate in the vicinity of the focal plane for a pair of vortices with equal topological charges. For incident beam with a pair of vortices with opposite topological charges, the vortices move toward each other, annihilate and revive in the vicinity of focal plane.
► The properties of a pair of vortices focused by a high numerical-aperture are studied. ► It is shown that the focusing vortices with equal topological charges move toward and rotate. ► It is shown that the focusing vortices with opposite topological charges move toward each other, annihilate and revive.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Ziyang Chen, Jixiong Pu, Daomu Zhao,