Izdebskaya Yana V, Shvedov Vladlen G, Jung Pawel S, Krolikowski Wieslaw
Opt Lett. 2018 Jan 1;43(1):66-69. doi: 10.1364/OL.43.000066.
We report on the first experimental observation of stable vortex solitons in nematic liquid crystals with nonlocal nonlinear reorientational response. We show how these nonlinear vortex beams can be formed and confined in extraordinary optical waves by employing the cell with no lateral boundary conditions and the application of an external magnetic field that effectively controls the molecular direction and propagation of the self-trapped beams. We also find that these vortex solitons can be generated in certain ranges of the input beam power.
我们报道了在具有非局部非线性重取向响应的向列型液晶中稳定涡旋孤子的首次实验观测结果。我们展示了如何通过使用无横向边界条件的单元以及施加有效控制自陷光束分子方向和传播的外部磁场，在异常光波中形成并限制这些非线性涡旋光束。我们还发现，这些涡旋孤子可以在输入光束功率的特定范围内产生。
