Issue 57, 2017, Issue in Progress

Manipulation and analysis of an optofluidic multiphase microlens

Abstract

An optofluidic microlens was investigated in this study by using a gas–liquid interface, and the underlying physics of the microlens formation was exploited by considering fluid parameters that control the shape of the microlens. A microfluidic device was designed and fabricated to secure a stable multiphasic interface in the channel. A theoretical model based on the coupled Stokes–Cahn–Hilliard equations was proposed to understand the characteristics of the lens formation in the device. The results show that nonlinear flow behavior near the gas–liquid interface affects the interface shape due to the effect of surface tension, and the extent of the lens symmetry is inversely proportional to the product of the capillary number (Ca) and Reynolds number (Re).

Graphical abstract: Manipulation and analysis of an optofluidic multiphase microlens

Supplementary files

Article information

Article type
Paper
Submitted
29 Apr 2017
Accepted
11 Jul 2017
First published
19 Jul 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 35827-35831

Manipulation and analysis of an optofluidic multiphase microlens

S. Y. Lee, D. Wee, J. R. Youn and Y. S. Song, RSC Adv., 2017, 7, 35827 DOI: 10.1039/C7RA04828A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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