Spatial weak-light ring soliton in self-assembled quantum dots

作者：Chen Qiu Cheng^*

来源：Chinese Physics B, 2014, 23(12): 124212.

DOI：10.1088/1674-1056/23/12/124212

• spatial weak-light ring dark soliton
• electromagnetically induced transparency
• self-assembled quantum dots

By using semiclassical theory combined with multiple-scale method, we analytically study the linear absorption and the nonlinear dynamical properties in a lifetime broadened Lambda-type three-level self-assembled quantum dots. It is found that this system can exhibit the transparency, and the width of the transparency window becomes wider with the increase of control light field. Interestingly, a weak probe light beam can form spatial weak-light dark solitons. When it propagates along the axial direction, the soliton will transform into a steady spatial weak-light ring dark soltion. In addition, the stability of two-dimensional spatial optical solitons is testified numerically.

• 出版日期2014-12
• 单位衡阳师范学院