标题： 平面微几何中凹液面超谐波毛细波的声激励 显示英文标题

标题： Acoustic excitation of superharmonic capillary waves on a meniscus in a planar micro-geometry

摘要： 超声波对平面微结构中气-水弯月面动力学的影响进行了实验研究。 受超声处理的弯月面表现出谐波行进波或驻波，后者对应于更高的超声波水平。 还观察到了具有次谐波和超谐波频率的驻波毛细波，并在参数共振理论的框架下，利用Mathieu方程进行了解释。 显示英文摘要

摘要： The effects of ultrasound on the dynamics of an air-water meniscus in a planar micro-geometry are investigated experimentally. The sonicated meniscus exhibits harmonic traveling waves or standing waves, the latter corresponding to a higher ultrasound level. Standing capillary waves with subharmonic and superharmonic frequencies are also observed, and are explained in the framework of parametric resonance theory, using the Mathieu equation.