Ferrofluid-based reconfigurable optofluidic switches for integrated sensing and digital data storage

被引:17
作者
Gu, Yu [1 ]
Valentino, Gianna [1 ]
Mongeau, Eric [1 ]
机构
[1] St Josephs Univ, Dept Phys, Philadelphia, PA 19131 USA
关键词
MICROCHIP; MICROFLUIDICS; TECHNOLOGY; CHIP;
D O I
10.1364/AO.53.000537
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a low-cost, reconfigurable, parallel optofluidic switch that exploits the optical and magnetic properties of water-based ferrofluid. Each switch is composed of an integrated waveguide orthogonally crossing a microfluidic channel containing high-index oil and a ferrofluid plug. The switch is turned ON or OFF by movement of the ferrofluid plug. In contrast to conventional integrated switches, ferrofluid plugs act as switching mechanisms that are portable and reconfigurable. Switches are demonstrated in parallel geometries for single and multimode waveguides. Possible applications include optofluidic memory, multiplexed sensing for lab-on-chip, or frequency-encoded laser excitation. (C) 2014 Optical Society of America
引用
收藏
页码:537 / 543
页数:7
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