Department of Engineering, University of Ferrara, Via Saragat 1, 44122 Ferrara, Italy.
Opt Lett. 2010 Dec 15;35(24):4217-9. doi: 10.1364/OL.35.004217.
We investigate dispersive shock waves developing via a gradient catastrophe during propagation of a dark beam in Kerr defocusing media, showing that a good degree of control, and even shock suppression, is possible by introducing a suitable phase chirp. Insight into the process is obtained by means of a suitable reduction of the hydrodynamic limit of the governing nonlinear Schrödinger equation.
我们研究了在克尔退聚焦介质中传播的暗光束通过梯度灾变产生的弥散激波，表明通过引入适当的相位啁啾可以实现很好的控制，甚至可以抑制激波。通过适当简化控制非线性薛定谔方程的流体力学极限，我们获得了对该过程的深入了解。
