光学方位子的观测

Observation of optical azimuthons.

作者信息

Minovich Alexander, Neshev Dragomir N, Desyatnikov Anton S, Krolikowski Wieslaw, Kivshar Yuri S

机构信息

Nonlinear Physics Centre, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200, Australia.

出版信息

Opt Express. 2009 Dec 21;17(26):23610-6. doi: 10.1364/OE.17.023610.

DOI:10.1364/OE.17.023610

PMID:20052070

Abstract

We observe experimentally optical azimuthons, a generic class of ring-shaped localised spiralling beams with azimuthal modulation, carrying phase dislocation in self-focusing nonlinear media. We observe three- and four-lobe azimuthons in 87Rb vapours and demonstrate their anomalous rotation controlled by the input phase distribution.

摘要

我们通过实验观测到了光学方位角孤子，这是一类具有方位角调制的环形局域螺旋光束的通用类型，在自聚焦非线性介质中携带相位位错。我们在87Rb蒸汽中观测到了三叶和四叶方位角孤子，并证明了它们的异常旋转受输入相位分布的控制。