研究非线性自散焦介质中暗孤子条在抛物面背景中的传输特性.结果显示:基态暗孤子条能够在抛物面背景中自相似地演化,而高阶暗孤子条则在自相似演化中会分裂出成对的灰孤子.
We discuss transport properties of dark soliton stripes on a paraboloidal background in a bulk graded-index waveguide with self-defocusing nonlinearity. The results show that the fundamental dark soliton stripe can self-similarly evolve on the paraboloidal background, and the high-order dark soliton stripe can split into grey solitons in pairs in the self-similar evolution.