DEVSIS : une philosophie de la documentation et de l'information

Réunion: International Cooperative Information Systems, 9-13 juil. 1979, Wien, ATDans IDL-287

Anisotropic charge displacement supporting isolated photorefractive optical needles

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.Comment: 3 pages, 3 figure