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Broken ring solitons in Bessel optical lattices.
Liangwei Dong1, Jiandong Wang, Hui Wang
1Institute of Information Optics, Zhejiang Normal University, Jinhua, China. donglw@zjnu.cn
Optics Letters
|December 17, 2008
Summary
Researchers explored ring solitons in nonlinear optical media, finding their structure depends on medium saturation and Bessel lattice properties. This work bridges multipole and necklace soliton behaviors.
Area of Science:
- Nonlinear Optics
- Optical Solitons
- Bessel Optical Lattices
Background:
- Ring solitons are complex optical phenomena.
- Understanding their behavior in nonlinear media is crucial.
- Bessel optical lattices offer unique trapping potentials.
Purpose of the Study:
- Investigate ring solitons with multiple nodes in defocusing saturable nonlinear media.
- Analyze the influence of Bessel optical lattices on soliton formation.
- Explore the transition between multipole and necklace solitons.
Main Methods:
- Theoretical analysis of nonlinear Schrödinger equations.
- Numerical simulations of soliton propagation.
- Parameter studies varying medium saturation and lattice properties.
Main Results:
- Existence of multipole-like ring solitons with nodal structures.
- Soliton existence domain width determined by medium saturation.
- Maximum soliton components depend on Bessel lattice ring radius.
- Solitons can be trapped on lattice rings if modulation is sufficiently deep.
Conclusions:
- Novel ring solitons with nodal structures exist in Bessel lattices.
- Medium saturation and lattice geometry are key parameters.
- This study provides a pathway to understanding necklace solitons.
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