Crossed fiber optic Bessel beams for curvilinear optofluidic transport of dielectric particles

Kim, Jongki, Lee, Sungrae, Jeong, Yoonseob, Kim, Jun-Ki, Jung, Yongmin, Merenda, Fabrice, Salathé, Renè-Paul, Shin, Jeon-Soo and Oh, Kyunghwan (2013) Crossed fiber optic Bessel beams for curvilinear optofluidic transport of dielectric particles. Optics Express, 21 (20), 23021-23029. (doi:10.1364/OE.21.023021).

Abstract

Due to its unique non-diffracting and self-reconstructing nature, Bessel beams have been successfully adopted to trap multiple particles along the beam’s axial direction. However, prior bulk-optic based Bessel beams have a fundamental form-factor limitation for in situ, in-vitro, and in-vivo applications. Here we present a novel implementation of Fourier optics along a single strand of hybrid optical fiber in a monolithic manner that can generate pseudo Bessel beam arrays in two-dimensional space. We successfully demonstrate unique optofluidic transport of the trapped dielectric particles along a curvilinear optical route by multiplexing the fiber optic pseudo Bessel beams. The proposed technique can form a new building block to realize reconfigurable optofluidic transportation of particulates that can break the limitations of both prior bulk-optic Bessel beam generation techniques and conventional microfluidic channels.

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Contributors

Author: Yongmin Jung

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