Interaction of two-dimensional spatial incoherent solitons in photorefractive medium

Autor:	Cornelia Denz, Andreas Stepken, Barry Luther-Davies, C. Weilnau, Jürgen Petter, Wieslaw Krolikowski, Milivoj R. Belić
Rok vydání:	1999
Předmět:	Quantum optics Physics Nonlinear system Physics and Astronomy (miscellaneous) Condensed matter physics Field (physics) Plane (geometry) General Engineering Perpendicular General Physics and Astronomy Soliton Photorefractive effect Anisotropy
Zdroj:	Applied Physics B: Lasers and Optics. 68:975-982
ISSN:	1432-0649 0946-2171
DOI:	10.1007/s003400050733
Popis:	We present a review of our recent theoretical and experimental results on the interaction of incoherent two-dimensional solitary beams in PR SBN crystals. We show that the inherent anisotropy of PR nonlinearity strongly affects the interaction between solitons. Theoretical and experimental results reveal that solitons interacting in a plane perpendicular to the direction of external biasing field always attract, whereas those colliding in a plane of the field exhibit anomalous behaviour. They may experience both attractive and repulsive forces, depending on their mutual separation. We also show that this anisotropy results in the complicated topology of soliton trajectories, featuring periodic collisions, prolonged mutual spiraling and collapse, depending on the initial conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::da00e365269bb436f160dc6bc30f3530 https://doi.org/10.1007/s003400050733 Zobrazit plný text záznamu Plný text ve formátu PDF