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Q: Quantenoptik und Photonik

Q 36: Poster Photonik in komplexen und periodischen Strukturen

Q 36.2: Poster

Dienstag, 14. März 2006, 16:30–18:30, Labsaal

Complex counterpropagating solitary structures in photorefractive media — •Christoph Bersch, Denis Träger, and Cornelia Denz — Institut für Angewandte Physik, Westfälische Wilhelms-Universität Münster, Corrensstr. 2/4, 48149 Münster, Germany

Counterpropagating optical spatial solitons are known to show significantly different behaviour than their copropagating counterparts [1]. Due to the inherent feedback, qualitatively new phenomena can be observed, including temporal dynamics. Up to now only few experimental results of very simple counterpropagating configurations in (2+1)D exist [2]. In contrast, complex copropagating structures, i.e. soliton arrays, and their interactions had been studied extensively in the recent years [3].

In this contribution we present experimental results of complex counterpropagating structures in a photorefractive SBN crystal. We investigate the interaction of a counterpropagating single beam and a soliton array in dependence of the beam position.

[1] Belić et al, Phys. Rev. E 68, 025601 (2003)

[2] Petrović et al, Phys. Rev. Lett. 95, 053901 (2005)

[3] Träger et al, J. Opt. A 5, 518 (2003)