Abstract We demonstrate a laser far field scattering method to detect droplets efficiently. The scattering from droplet include transmission and reflection patterns, and the relation between the intensity distributions of scattering and the surface tension, refractive index of the liquid droplet were derived out theoretically. In our experiment, the stable transmission and reflection patterns from droplets were collected clearly, and surface tension, the refractive index of the droplet were measured simultaneously. A new optical method for detecting the droplet was developed, and the correlation of the scattering patterns to the droplet shape was also established experimentally. Our work has potential applications in the field of interfacial phenomena.

中文翻译：

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用远场散射技术测量垂直板上的液体表面张力和液滴形状

摘要 我们展示了一种激光远场散射方法来有效检测液滴。液滴的散射包括透射和反射模式，从理论上推导出散射强度分布与液滴表面张力、折射率之间的关系。在我们的实验中，清晰地收集了液滴的稳定透射和反射图案，同时测量了液滴的表面张力和折射率。开发了一种新的检测液滴的光学方法，并且还通过实验建立了散射模式与液滴形状的相关性。我们的工作在界面现象领域具有潜在的应用。