Tunable and movable liquid microlens in situ fabricated within microfluidic channels
Tunable and movable liquid microlens in situ fabricated within microfluidic channels
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DOI：
10.1063/1.2759469
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发表时间：
2007-07-23
影响因子：
4
通讯作者：
Jiang, Hongrui
中科院分区：
文献类型：
--
作者：
Dong, Liang;Jiang, Hongrui
本文报道了一种可调可动液体微透镜的原位制备方法。利用微尺度上的表面张力，微透镜是由液滴与空气界面形成的。通过液滴的气动控制，微透镜可以根据需要调整焦距并在微流体通道内移动，从而具有高度的可重构性。焦距调节范围从1.5到8.9毫米的演示。微透镜的平面内光轴为微流体内部的微光学设计提供了灵活性，通过实现平面荧光检测装置证明了这一点。
The authors report on a tunable and movable liquid microlens in situ fabricated through fluid manipulation within microfluidics. Taking advantage of surface tensions at the microscale, the microlens is formed by a liquid droplet interfacing air. Through pneumatic control of the droplet, the microlens can be tuned in focal length and moved within the microfluidic channel on demand, thus being highly reconfigurable. A focal length tuning range from 1.5 to 8.9 mm is demonstrated. The in-plane optical axis of the microlens provides the flexibility in designing micro-optics within microfluidics, as demonstrated by realizing a planar fluorescence detection device.