Journal article
Modulational instability and solitons in nonlocal media with competing nonlinearities
Technical University of Denmark1
Karlsruhe Institute of Technology2
Ultrafast Nonlinear Optics group, Department of Photonics Engineering, Technical University of Denmark3
Department of Photonics Engineering, Technical University of Denmark4
Fiber Sensors & Supercontinuum, Department of Photonics Engineering, Technical University of Denmark5
Australian National University6
We investigate analytically and numerically propagation and spatial localization of light in nonlocal media with competing nonlinearities. In particular, we discuss conditions for the modulational instability of plane waves and formation of spatial solitons. We show that the competing focusing and defocusing nonlinearities enable coexistence of dark or bright spatial solitons in the same medium by varying the intensity of the beam.
Language: | English |
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Year: | 2011 |
ISSN: | 10941622 , 10502947 and 24699926 |
Types: | Journal article |
DOI: | 10.1103/PhysRevA.84.053854 |
ORCIDs: | Bache, Morten and Bang, Ole |