Measurement of liquid surface tension and shape of a droplet on vertical plate by far field scattering technique

Autor: Wu Shengbo, Qin Yipan, Qian Lailai, Shi Bo, Jiaojiao Xie, Qiao Zhu, Daobin Luo
Rok vydání: 2021
Předmět:
Zdroj: Optics Communications. 482:126578
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2020.126578
Popis: 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.
Databáze: OpenAIRE