研究了亚强非局域空间光孤子的相互作用规律,从光线方程出发得到了孤子光束中心的演化性质以及相互作用周期的解析解.发现亚强非局域条件下孤子的初始间距和非局域特征长度的关系对孤子的相互作用周期有很大的影响,在斜入射时存在一个最大入射角,小于这个角度孤子才会吸引.数值模拟验证了理论解析的结果.
We investigate the interaction between spacial optical solitons in the sub-strongly non-local nonlinear media. From the light- rays equation, we obtained the evolution rule of the beam centers and found that the ratio of initial separation d0 between solitons and the characteristic length wm of the nonlocal nonlinearity have decisive influence on the interaction. We also found the largest angle below which the solitons can be attracted at oblique incidence. Numerical simulations confirm our theoretical results.