Journal
OPTICS EXPRESS
Volume 19, Issue 24, Pages 23706-23715Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.023706
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Funding
- Binational USA - Israel Science Foundation
- Israel Science Foundation
- European Research Council
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We find self-accelerating beams in highly nonlocal nonlinear optical media, and show that their propagation dynamics is strongly affected by boundary conditions. Specifically for the thermal optical nonlinearity, the boundary conditions have a strong impact on the beam trajectory: they can increase the acceleration during propagation, or even cause beam bending in a direction opposite to the initial trajectory. Under strong self-focusing, the accelerating beam decomposes into a localized self-trapped beam propagating on an oscillatory trajectory and a second beam which accelerates in a different direction. We augment this study by investigating the effects caused by a finite aperture and by a nonlinear range of a finite extent. (C) 2011 Optical Society of America
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