Journal article
Anomalous interaction of nonlocal solitons in media with competing nonlinearities
Technical University of Denmark1
Department of Photonics Engineering, Technical University of Denmark2
Ultrafast Nonlinear Optics group, Department of Photonics Engineering, Technical University of Denmark3
Fiber Sensors & Supercontinuum, Department of Photonics Engineering, Technical University of Denmark4
Australian National University5
We theoretically investigate properties of individual bright spatial solitons and their interaction in nonlocal media with competing focusing and defocusing nonlinearities. We consider the general case with both nonlinear responses characterized by different strengths and degrees of nonlocality. We employ a variational approach to analytically describe soliton properties.
In particular, we prove analytically that the interplay of focusing and defocusing nonlocal nonlinearities leads to attraction or repulsion of solitons depending on their separation distance. We then study the propagation and interaction of solitons using numerical simulations of the full model of beam propagation.
The numerical simulations fully confirm our analytical results.
| Language: | English |
|---|---|
| Year: | 2012 |
| ISSN: | 10941622 , 10502947 and 24699926 |
| Types: | Journal article |
| DOI: | 10.1103/PhysRevA.86.033838 |
| ORCIDs: | Bache, Morten and Bang, Ole |
