Deng Zhixiang, Liu Jun, Huang Xianwei, Zhao Chujun, Wang Xinlin
Opt Express. 2018 Jun 25;26(13):16535-16546. doi: 10.1364/OE.26.016535.
We demonstrate that the optical event horizon can provide an effective technique to actively control the propagation properties of a dark soliton with another weak probe wave. Careful power adjustment of the probe wave enables the black soliton converted into a gray one with varying grayness through the nonlinear interaction, corresponding to a nearly adiabatic variation of the soliton's speed. The sign of the phase angle for the newly formed gray soliton at optical event horizon is significantly dependent on the frequency of the launched probe wave. Linear-stability analysis of dark solitons under the perturbation of a weak probe wave is performed to clarify the intrinsic mechanism of the nonlinear interaction. The probe wave manipulated collisional dynamics between both dark solitons are investigated as an analogue of the combined white-hole and black-hole horizons which provides some insights into exploring the transition between integrable and non-integrable systems.
我们证明，光学事件视界可以提供一种有效的技术，用另一个弱探测波来主动控制暗孤子的传播特性。对探测波进行仔细的功率调整，可使黑色孤子通过非线性相互作用转变为具有不同灰度的灰色孤子，这对应于孤子速度的近似绝热变化。在光学事件视界处新形成的灰色孤子的相角符号显著依赖于所发射探测波的频率。对弱探测波扰动下暗孤子进行线性稳定性分析，以阐明非线性相互作用的内在机制。研究了探测波操控的两个暗孤子之间的碰撞动力学，将其作为白洞和黑洞组合视界的一种类比，这为探索可积系统与不可积系统之间的转变提供了一些见解。
