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Journal article

Modulational instability and solitons in nonlocal media with competing nonlinearities

By Esbensen, B. K.1; Wlotzka, A.2; Bache, Morten3,4; Bang, Ole4,5; Krolikowski, W.6

From

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
Year: 2011
ISSN: 10941622 , 10502947 and 24699926
Types: Journal article
DOI: 10.1103/PhysRevA.84.053854
ORCIDs: Bache, Morten and Bang, Ole

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