Open AccessPropagation of sharply autofocused ring Airy Gaussian vortex beams
Author(s) -
Bin Chen,
Chidao Chen,
Xi Peng,
Yulian Peng,
Meiling Zhou,
Dongmei Deng
Publication year - 2015
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.23.019288
Subject(s) - physics , optics , gaussian , vortex , optical vortex , gaussian beam , beam (structure) , topological quantum number , vortex ring , light beam , quantum mechanics , mechanics
Controlling the focal length and the intensity of the optical focus in the media is an important task. Here we investigate the propagation properties of the sharply autofocused ring Airy Gaussian vortex beams numerically and some numerical experiments are performed. We introduce the distribution factor b into the initial beams, and discuss the influences for the beams. With controlling the factor b, the beams that tend to a ring Airy vortex beam with the smaller value, or a hollow Gaussian vortex beam with the larger one. By a choice of initial launch condition, we find that the number of topological charge of the incident beams, as well as its size, greatly affect the focal intensity and the focal length of the autofocused ring Airy Gaussian vortex beams. Furthermore, we show that the off-axis autofocused ring Airy Gaussian beams with vortex pairs can be implemented.