Effects of gravity on the shape of liquid droplets

被引：56

作者：

Ren, Hongwen ^{[1
]}

Xu, Su ^{[2
]}

Wu, Shin-Tson ^{[2
]}

机构：

[1] Chonbuk Natl Univ, Dept Polymer Nanosci & Engn, Chonju 561756, Chonbuk, South Korea

[2] Univ Cent Florida, Coll Opt & Photon, Orlando, FL 32816 USA

来源：

OPTICS COMMUNICATIONS | 2010年 / 283卷 / 17期

关键词：

Liquid droplet; Droplet surface; Surface tension; Focal length; Gravity effect; CONTACT-ANGLE; BROAD-BAND; LENS; MICROLENS;

D O I：

10.1016/j.optcom.2010.04.045

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the gravity effects on the shape and focal length changes of liquid droplets. As the droplet size decreases, the gravity effect is gradually weakened. Moreover, if the outside space of the droplet is filled with another immiscible liquid rather than air, the filled liquid helps to offset the gravity effect even though their densities do not match well. Good agreement between experiment and simulation is obtained. The negligible gravity effect enables us to improve the optical performances of the liquid lens by choosing suitable liquids without worrying their density mismatch. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：3255 / 3258

页数：4

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