Optofluidic laser scanner based on a rotating liquid prism
Optofluidic laser scanner based on a rotating liquid prism
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DOI：
10.1364/ao.55.002136
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发表时间：
2016-03-20
期刊：
影响因子：
1.9
通讯作者：
Zappe, Hans
中科院分区：
文献类型：
--
作者：
Kopp, Daniel;Lehmann, Lukas;Zappe, Hans
我们展示了一种基于可旋转液体棱镜的电润湿驱动光流控系统，该系统被实现为二维激光扫描器。该系统是通过使用图案化柔性聚合物箔的新技术制造的，在该柔性聚合物箔上构造了高密度的电极，然后将其插入到圆柱形外壳中。产生的径向电极阵列用于填充到圆柱体中的两种流体的电润湿致动，这允许平面液体界面的可控倾斜和取向，从而表示可调旋转棱镜。有限元模拟和随后的实验验证表明，这种高度平坦且可精确定位的液/液界面可以驱动到+/-6.4度的偏转角，标准偏差为+/-0.18度，并可绕垂直轴旋转360度。功率消耗被限制在几微瓦，并确定了数百毫秒的切换时间。(C)2016年度美国光学学会
We demonstrate an electrowetting-actuated optofluidic system based on a rotatable liquid prism implemented as a two-dimensional laser scanner. The system is fabricated through a novel technology using a patterned flexible polymeric foil on which a high density of electrodes is structured and which is subsequently inserted into a cylindrical housing. The resulting radial electrode array is used for electrowetting actuation of two fluids filled into the cylinder, which allows a controllable tilt and orientation of the planar liquid interface and thus represents a tunable rotating prism. Finite element simulations and subsequent experimental verification show that this highly planar and precisely positionable liquid/liquid interface may be actuated to a deflection angle of +/- 6.4 degrees, with a standard deviation of +/- 0.18 degrees, and rotated 360 degrees about the vertical axis. Power consumption is limited to several microwatts, and switching times of several hundred milliseconds were determined. (C) 2016 Optical Society of America