Anisotropic charge displacement supporting isolated photorefractive optical needles
arXiv:physics/0012028 · doi:10.1364/OL.26.000908
Abstract
The strong asymmetry in charge distribution supporting a single non-interacting spatial needle soliton in a paraelectric photorefractive is directly observed by means of electroholographic readout. Whereas in trapping conditions a quasi-circular wave is supported, the underlying double-dipolar structure can be made to support two distinct propagation modes.
3 pages, 3 figures