Wettability characterization method based on optical coherence tomography imaging
Wettability characterization method based on optical coherence tomography imaging
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DOI：
10.1364/oe.18.022859
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发表时间：
2010-10-25
期刊：
影响因子：
3.8
通讯作者：
Yasuno, Yoshiaki
中科院分区：
文献类型：
--
作者：
Fabritius, Tapio;Myllyla, Risto;Yasuno, Yoshiaki
提出了一种基于接触角测量的表面润湿性表征新方法。使用光学相干断层扫描（OCT）对基板上的液滴进行三维结构成像，光学相干断层扫描（OCT）提供微米分辨率图像而不与样品接触。一个自动的OCT强度变化的基础上，层分割方法来识别空气液滴，液滴基板和空气基板界面。粗糙倾斜的玻璃基板上的甘油液滴被用作测试样品，以证明所提出的方法的润湿特性的适用性。结果表明，该方法可以得到任意观察角度下的接触角。此外，可以确定液滴的平均折射率。所提出的方法是一个有趣的和互补的工具，目前的润湿表征方法。(C)2010年美国光学学会
A novel method for surface wetting characterization based on contact angle measurements is presented. Three dimensional structural imaging of a droplet on a substrate is performed using optical coherence tomography (OCT) which provides micrometer resolution images without contact with the sample. An automatic OCT intensity variation based, layer segmentation method was implemented to identify air-droplet, droplet-substrate and air-substrate interfaces. A glycerol droplet on a rough tilted glass substrate was used as a test sample to demonstrate the applicability of the proposed method for wetting characterization. Results show that the contact angle of any observation angle can be obtained. In addition, the droplet's average refractive index can be determined. The proposed method is an interesting and complementary tool for present wetting characterization methods. (C) 2010 Optical Society of America