Helmholtz solitons: a new angle in nonlinear science

Chamorro-Posada, P; McDonald, GS; Sanchez-Curto, J; Christian, JM

Abstract

The ubiquitous nonlinear SchrÄodinger (NLS) equation models soliton propagation in many di®erent scenarios. In a nutshell, the NLS equation describes the slow modulation of the envelope of a linear wave when propagating in a weakly nonlinear medium. Within the context of spatial optical
solitons, for instance, slow refers to the paraxial approximation which per mits to derive the NLS equation from the more general nonlinear Helmholtz (NLH) equation [1] for the envelope of an optical beam which propagates
along a de¯nite axis, or in¯nitesimally close to it, and which is broad when compared to the wavelength, thus, preserving the weakly nonlinear nature of
the propagating disturbance. Restrictions on the propagation angle can be released using the NLH
equation which restores the spatial symmetry required when angular considerations are fundamental such as in the collisions of solitons or when they impinge on a nonlinear interface [1]. A detailed account of recent progress
in the field [1] plus new results will be presented, including exact soliton solutions and analytical and numerical investigations of their properties.

References:
[1] Chamorro-Posada P. et al. Phys. Rev. E 74 036609 (2006), S¶anchez-Curto J. et al. Opt. Lett. 32 1126 (2007), Christian J.M. et al. J. Phys. A: Math. Gen 40 1545 (2007).

Citation

Chamorro-Posada, P., McDonald, G., Sanchez-Curto, J., & Christian, J. Helmholtz solitons: a new angle in nonlinear science. Presented at Nonlinear Evolution Equations and Dynamical Systems (NEEDS), L’Ametlla de Mar, Spain

• Presentation Conference Type: Lecture
• Conference Name: Nonlinear Evolution Equations and Dynamical Systems (NEEDS)
• Conference Location: L’Ametlla de Mar, Spain
• End Date: Jun 24, 2007
• Publication Date: Jun 15, 2007
• Deposit Date: Oct 17, 2011
• Publicly Available Date: Apr 5, 2016
• Additional Information: Event Type : Conference