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Proceedings Paper

Optical vortex solitons and nonlinear Aharanov-Bohm effect
Author(s): Dragomir Neshev; Alexander A. Nepomnyashchy; Yuri S. Kivshar
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Paper Abstract

We study the scattering properties of optical vortex solitons generated in a self-defocusing nonlinear Kerr medium, analyzing both linear and nonlinear wave scattering. In the linear case, we find a splitting of a plane-wave front at the optical vortex proportional to the vortex circulation, similar to what occurs in the scattered wave of electrons for the Aharonov-Bohm effect. For larger wave amplitudes, we study analytically and numerically the scattering of a dark-soliton stripe, a nonlinear analog of a small-amplitude wavepacket, by a vortex and observe a significant asymmetry of the scattered wave. Subsequently, a wavefront splitting of the scattered wave develops into transverse modulation (snake) instability of the stripe that generates two trains of vortices with opposite charges.

Paper Details

Date Published: 30 May 2001
PDF: 8 pages
Proc. SPIE 4403, Second International Conference on Singular Optics (Optical Vortices): Fundamentals and Applications, (30 May 2001); doi: 10.1117/12.428268
Show Author Affiliations
Dragomir Neshev, Australian National Univ. (Australia)
Alexander A. Nepomnyashchy, Australian National Univ. and Technion--Israel Institute of Technology (Australia)
Yuri S. Kivshar, Australian National Univ. (Australia)

Published in SPIE Proceedings Vol. 4403:
Second International Conference on Singular Optics (Optical Vortices): Fundamentals and Applications
Marat S. Soskin; Mikhail V. Vasnetsov, Editor(s)

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