Numerical study of an electrowetting liquid microlens

Numerical study of an electrowetting liquid microlens

We construct a numerical model for a liquid microlens formed by filling a microwell with two immiscible liquids, namely oil and water. The water–oil interface can be actuated as a tunable liquid lens because its curvature is well controlled by applying an external electric field. The contact angle o...

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Main Authors: Shuyuan Lv, Chongqi Liu, WenFeng Luo
Format: Article
Language:English
Published: AIP Publishing LLC 2018-11-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5049385
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spelling doaj-3939114cc4f24735baa71a2a436714c12020-11-24T21:13:49ZengAIP Publishing LLCAIP Advances2158-32262018-11-01811115035115035-610.1063/1.5049385119811ADVNumerical study of an electrowetting liquid microlensShuyuan Lv0Chongqi Liu1WenFeng Luo2Department of Photoelectron Technology, Xi’an University of Posts and Telecommunications, 710121 Xi’an, ChinaDepartment of Photoelectron Technology, Xi’an University of Posts and Telecommunications, 710121 Xi’an, ChinaDepartment of Photoelectron Technology, Xi’an University of Posts and Telecommunications, 710121 Xi’an, ChinaWe construct a numerical model for a liquid microlens formed by filling a microwell with two immiscible liquids, namely oil and water. The water–oil interface can be actuated as a tunable liquid lens because its curvature is well controlled by applying an external electric field. The contact angle of the oil droplet has the opposite tendency to that of a traditional water-filled microwell because of the repulsion force from the water phase. We study the dynamic interface deformation as functions of time and applied voltage, which typically within 10 ms is good enough as an imaging system for human eyes. In addition, using two different filling liquids provides more possibilities for tuning the focal length.http://dx.doi.org/10.1063/1.5049385
collection DOAJ
language English
format Article
sources DOAJ
author Shuyuan Lv
Chongqi Liu
WenFeng Luo
spellingShingle Shuyuan Lv
Chongqi Liu
WenFeng Luo
Numerical study of an electrowetting liquid microlens
AIP Advances
author_facet Shuyuan Lv
Chongqi Liu
WenFeng Luo
author_sort Shuyuan Lv
title Numerical study of an electrowetting liquid microlens
title_short Numerical study of an electrowetting liquid microlens
title_full Numerical study of an electrowetting liquid microlens
title_fullStr Numerical study of an electrowetting liquid microlens
title_full_unstemmed Numerical study of an electrowetting liquid microlens
title_sort numerical study of an electrowetting liquid microlens
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2018-11-01
description We construct a numerical model for a liquid microlens formed by filling a microwell with two immiscible liquids, namely oil and water. The water–oil interface can be actuated as a tunable liquid lens because its curvature is well controlled by applying an external electric field. The contact angle of the oil droplet has the opposite tendency to that of a traditional water-filled microwell because of the repulsion force from the water phase. We study the dynamic interface deformation as functions of time and applied voltage, which typically within 10 ms is good enough as an imaging system for human eyes. In addition, using two different filling liquids provides more possibilities for tuning the focal length.
url http://dx.doi.org/10.1063/1.5049385
work_keys_str_mv AT shuyuanlv numericalstudyofanelectrowettingliquidmicrolens
AT chongqiliu numericalstudyofanelectrowettingliquidmicrolens
AT wenfengluo numericalstudyofanelectrowettingliquidmicrolens
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