Open AccessSpin-orbital coupling of quadratic-power-exponent-phase vortex beam propagating in a uniaxial crystal
Author(s) -
Houquan Liu,
Shijie Deng,
Hongchang Deng,
Ronghui Xu,
Hongyan Yang,
Chuanxin Teng,
Li Zhang,
Ming Chen,
Libo Yuan
Publication year - 2019
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.377420
Subject(s) - angular momentum , physics , vortex , optical vortex , uniaxial crystal , gaussian beam , optics , condensed matter physics , orbital angular momentum of light , light beam , phase (matter) , coupling (piping) , classical mechanics , beam (structure) , quantum mechanics , total angular momentum quantum number , optical axis , mechanics , materials science , lens (geology) , metallurgy
Recent studies have shown that quadratic-power-exponent-phase (QPEP) vortex and modified QPEP vortex have some novel properties and potential applications in optical manipulation, orbital angular momentum (OAM) communication, OAM multicasting and so on. In these applications, there may be potential need of processing these kinds of beams by using uniaxial crystals. In this paper, the analytical propagation equations of Gaussian QPEP vortex and modified QPEP vortex propagating in uniaxial crystals are derived and the evolution of the angular momentum via spin-orbital coupling during the propagation is investigated. This may be meaningful for guiding and promoting the applications of the QPEP vortex and modified QPEP vortex.