Observation of Discrete Solitons and Soliton Rotation in Optically Induced Periodic Ring Lattices
Xiaosheng WangDepartment of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USAZhigang ChenDepartment of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USAP. G. KevrekidisDepartment of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003, USA;
2006en
ABI
Annotatsiya
We report the first experimental demonstration of ring-shaped photonic lattices by optical induction and the formation of discrete solitons in such radially symmetric lattices. The transition from discrete diffraction to single-channel guidance or nonlinear self-trapping of a probe beam is achieved by fine-tuning the lattice potential or the focusing nonlinearity. In addition to solitons trapped in the lattice center and in different lattice rings, we demonstrate controlled soliton rotation in the Bessel-like ring lattices.
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