Tunable liquid microlens
Tunable liquid microlens
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DOI：
10.1063/1.1536033
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发表时间：
2003-01-20
影响因子：
4
通讯作者：
Mach, P
中科院分区：
文献类型：
--
作者：
Krupenkin, T;Yang, S;Mach, P
介绍了一种可调液体微透镜，它的焦距和横向位置均可调。微透镜由放置在具有低表面能涂层的电介质基板上的透明导电液体的液滴组成。通过改变施加到位于介电基板下方的一组电极的电压，可以可逆地改变微透镜的位置和曲率。实验研究和理论计算支持的材料的性质上的微透镜的行为的依赖关系。与接触角滞后和粘滑现象的微透镜性能的潜在限制进行了概述，并提出了可能的方法来减轻它们。所提出的方法的可能的扩展进行了讨论。(C)2003年，美国物理学会。
A tunable liquid microlens capable of adjusting its focal length and lateral position is demonstrated. The microlens consists of a droplet of a transparent conductive liquid placed on a dielectric substrate with a low surface energy coating. By varying the voltage applied to a set of electrodes positioned underneath of the dielectric substrate, both the position and curvature of the microlens can be reversibly changed. The dependence of the microlens behavior on the properties of the materials involved is experimentally investigated and supported by theoretical calculations. Potential limitations of the microlens performance associated with the contact angle hysteresis and stick-slip phenomena are outlined and possible ways to alleviate them are proposed. Possible extensions of the proposed approach are also discussed. (C) 2003 American Institute of Physics.