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Microfabricated-composite-hologram-enabled multiple channel longitudinal optical guiding of microparticles in nondiffracting core of a Bessel beam array

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7 Author(s)
Ahluwalia, B.P.S. ; School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798 ; Yuan, X.-C. ; Tao, S.H. ; Bu, J.
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In this letter, we report multiple-channel longitudinal optical guiding of microparticles using an array of Bessel beams generated from a composite hologram fabricated by ultraviolet lithography. The optical guiding efficiency of each Bessel beam in the optical array is investigated experimentally. The rod-like core of each Bessel beam, with its nondiffracting and self-reconstruction property, has been shown to offer strong capability for optical guiding along the propagation axis possibly even in multiple-microfluidic channels massively.

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Applied Physics Letters  (Volume:87 ,  Issue: 8 )