Title

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

Authors

Authors

H. W. Ren; D. Q. Ren;S. T. Wu

Abbreviated Journal Title

Opt. Express

Keywords

FOCAL LENGTH TUNABILITY; LENS; POLYMER; Optics

Abstract

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

Journal Title

Optics Express

Volume

17

Issue/Number

26

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

24183

Last Page

24188

WOS Identifier

WOS:000273156200087

ISSN

1094-4087

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