论文标题
光学和流体动力学的“非凡”调节不稳定性
"Extraordinary" modulation instability in optics and hydrodynamics
论文作者
论文摘要
归因于光波和本杰明·弗吉尔（Benjamin-Feir）用于水波的BeSpalov-Talanov的经典理论（MI）只是非线性效应的线性近似，并且具有使用波传播的确切弱非线性理论纠正的局限性。我们报告了光学和流体动力学的实验结果，它们与非线性理论非常吻合。这些观察结果清楚地表明，MI的频率比线性稳定性分析所预测的更宽。实际上，可以应用非线性MI理论的领域范围比这里所考虑的要大得多。
The classical theory of modulation instability (MI) attributed to Bespalov-Talanov in optics and Benjamin-Feir for water waves is just a linear approximation of nonlinear effects and has limitations that have been corrected using the exact weakly nonlinear theory of wave propagation. We report results of experiments in both, optics and hydrodynamics, which are in excellent agreement with nonlinear theory. These observations clearly demonstrate that MI has wider band of unstable frequencies than predicted by the linear stability analysis. The range of areas where the nonlinear theory of MI can be applied is actually much larger than considered here.
