Propagation characteristics of controllable dark-hollow beams in a quadratic-index medium
- 27 February 2018
- journal article
- research article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 35 (3) , 462-465
Abstract
In this paper, the propagation of controllable dark-hollow beams (CDHBs) passing through a quadratic-index medium is studied. An analytical expression for the propagation of CDHBs in a quadratic-index medium is presented based on the ABCD matrix method, and the effect of the beam parameters on the evolution of a CDHB is investigated. It is found that the intensity distribution of CDHBs evolves periodically during propagation in the quadratic-index medium. The results indicate that the distance in which the dark-hollow center of a CDHB disappears can be increased by the beam parameters.Keywords
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