Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1534169 | Optics Communications | 2015 | 7 Pages |
Abstract
We report the existence and stability of two-dimensional (2D) fundamental, dipole-mode, vortex, and multipole solitons in parity-time (PT) symmetric triangular lattices with the Kerr self-focusing nonlinearity. It is demonstrated that the structure of such complex lattice potentials strongly affects the shape of the solitons, enabling the formation of stable out-of-phase dipole and multipole solitons, as well as vortices. The solitons of all these species have their stability regions in the semi-infinite gap. We also identify the point of the PT-symmetry-breaking phase transition in this lattice.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hong Wang, Shuang Shi, Xiaoping Ren, Xing Zhu, Boris A. Malomed, Dumitru Mihalache, Yingji He,