title: Modulated vortex solitons of four-wave mixing.
abstract: We experimentally demonstrate the vortex solitons of four-wave mixing (FWM) in multi-level atomic media created by the interference patterns with superposing three or more waves. The modulation effect of the vortex solitons is induced by the cross-Kerr nonlinear dispersion due to atomic coherence in the multi-level atomic system. These FWM vortex patterns are explained via the three-, four- and five-wave interference topologies.
authors.affiliation: Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China. ypzhang@mail.xjtu.edu.cn
authors.forename: Yanpeng
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Nie
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhao
authors.forename: Changbiao
authors.initials: C
authors.lastname: Li
authors.forename: Ruimin
authors.initials: R
authors.lastname: Wang
authors.forename: Jinhai
authors.initials: J
authors.lastname: Si
authors.forename: Min
authors.initials: M
authors.lastname: Xiao
mesh_terms: D003198:Computer Simulation; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation