A new method for fabricating high density and large aperture ratio liquid microlens array

被引：16
|
作者：
Ren, Hongwen [1 ,2 ]
Ren, Daqiu [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 EXPRESS | 2009年 / 17卷 / 26期
关键词：
FOCAL LENGTH TUNABILITY; LENS; POLYMER;
D O I：
10.1364/OE.17.024183
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Conventional liquid microlens arrays are facing bottlenecks in controlling droplet size and shape, and limited aperture ratio. We report a new liquid/solvent approach to overcome these obstacles for making uniform droplet array and achieving similar to 90% aperture ratio. The droplets are very stable due to the pinning effect of the polymer walls and substrate surfaces. Using the fabricated droplet array, we demonstrate a tunable-focus microlens array based on dielectrophoretic effect. The microlens array exhibits a large dynamic range and fast response time ( tens of milliseconds). Besides liquid microlens arrays, this fabrication method also opens a new door for making other tunable photonic devices. (C) 2009 Optical Society of America
引用
收藏
页码：24183 / 24188
页数：6
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