Tunable Fresnel lens using nanoscale polymer-dispersed liquid crystals

被引：175

作者：

Ren, HW ^{[1
]}

Fan, YH ^{[1
]}

Wu, ST ^{[1
]}

机构：

[1] Univ Cent Florida, CREOL, Sch Opt, Orlando, FL 32816 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 08期

关键词：

D O I：

10.1063/1.1604943

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An electrically tunable Fresnel zone plate lens is demonstrated using nanoscale polymer-dispersed liquid crystal droplets. In the voltage-off state, the zone plate behaves like a positive lens. The measured diffraction efficiency is close to the theoretical limit and is controllable by voltage. The major advantages of such a Fresnel lens are simple fabrication, large aperture size, polarization independent, and fast switching speed, although the required operating voltage is relatively high. (C) 2003 American Institute of Physics.

引用

页码：1515 / 1517

页数：3

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