Soliton interaction in logarithmically saturable media
Artikel i vetenskaplig tidskrift, 2009

An analysis, based on the variational approach, is carried out of the interaction between two fully coherent solitons as well as two partially coherent soliton stripes in a medium with logarithmic nonlinearity. For the coherent case, it is found that the interaction can be both attractive and repulsive depending on the relative phase. The different interaction scenarios involve a bound system where the distance between the solitons oscillates with various magnitude of the oscillation amplitude, including total coalescence, and another where the solitons separate asymptotically. The effect of partial coherence on the soliton interaction is also studied by analyzing the interaction between two partially coherent soliton stripes. It is found that the strength as well as the character (attractive/repulsive) of the interaction changes for decreasing coherence. Thus, the general interaction properties of solitons in logarithmic nonlinear media are qualitatively similar to those of solitons in nonlinear Kerr media.

Författare

Tobias Hansson

Chalmers, Institutionen för radio- och rymdvetenskap, Icke-linjär elektrodynamik

Dan Anderson

Chalmers, Institutionen för radio- och rymdvetenskap, Icke-linjär elektrodynamik

Mietek Lisak

Chalmers, Institutionen för radio- och rymdvetenskap, Icke-linjär elektrodynamik

Optics Communications

0030-4018 (ISSN)

Vol. 283 318-322

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1016/j.optcom.2009.09.034