摘要
We report on the existence and stability of defect solitons in two-dimensional optical Bessel potentials. It is found that for zero defect, defect solitons are stable in the entire existence domain. For negative defects, defect solitons are unstable in tile moderate power region. It is worth emphasizing that for deep enough defects, another unstable domain will emerge in the high power region.
We report on the existence and stability of defect solitons in two-dimensional optical Bessel potentials. It is found that for zero defect, defect solitons are stable in the entire existence domain. For negative defects, defect solitons are unstable in tile moderate power region. It is worth emphasizing that for deep enough defects, another unstable domain will emerge in the high power region.
基金
This work was supported by the National Natural Science Foundation of China （Grant nos. 11174147, and 11104144） and the Fundamental Research Punds for the Central Universities （Grant no. NZ2012301）.
