Open AccessAccelerating incoherent hollow beams beyond the paraxial regime
Author(s) -
Yue Yang,
Shaohui Yan,
Xianghua Yu,
Manman Li,
Baoli Yao
Publication year - 2016
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.24.027683
Subject(s) - paraxial approximation , optics , physics , superposition principle , beam (structure) , transverse plane , acceleration , light beam , phase (matter) , cross section (physics) , classical mechanics , structural engineering , quantum mechanics , engineering
We propose a non-paraxial hollow accelerating beam, which is formed by incoherently superposing two well-designed coherent accelerating beams. Very interestingly, this incoherent superposition does not hamper the acceleration dynamics pertaining to the coherent ones, but results in a hollow intensity pattern in the cross section transverse to the circular accelerating trajectory. By a simple optimization, this hollow cross section pattern can be effectively extended to an angle close to 90°. The magnitude and the phase of the angular spectrum of the beam are given followed by a suggested scheme to generate the beam in practice. Such highly self-bending hollow beams may find applications in some fields such as optical manipulation.