标题： 非局部克尔型介质中具有随机参数的调制不稳定性 显示英文标题

标题： Modulational instability in nonlocal Kerr-type media with random parameters

摘要： 连续波在具有随机变化的衍射（色散）和非线性系数的非局部聚焦和非聚焦Kerr介质中的调制不稳定性被进行了分析和数值研究。 结果显示，具有介质响应函数傅里叶图像符号确定的非局部性显著抑制了由随机性引起的不稳定性增长速率峰值和带宽。 相反，具有负符号频带的响应函数的非局部性可以增强调制不稳定性增长。 显示英文摘要

摘要： Modulational instability of continuous waves in nonlocal focusing and defocusing Kerr media with stochastically varying diffraction (dispersion) and nonlinearity coefficients is studied both analytically and numerically. It is shown that nonlocality with the sign-definite Fourier images of the medium response functions suppresses considerably the growth rate peak and bandwidth of instability caused by stochasticity. Contrary, nonlocality can enhance modulational instability growth for a response function with negative-sign bands.