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Sensors 2013, 13(3), 2884-2894; doi:10.3390/s130302884

Trapping and Propelling Microparticles at Long Range by Using an Entirely Stripped and Slightly Tapered No-Core Optical Fiber

Department of Electrophysics, National Chiayi University, Chiayi 60004, Taiwan
Author to whom correspondence should be addressed.
Received: 3 December 2012 / Revised: 28 January 2013 / Accepted: 25 February 2013 / Published: 28 February 2013
(This article belongs to the Special Issue Laser Sensing and Imaging)
View Full-Text   |   Download PDF [631 KB, uploaded 21 June 2014]   |  


A stripped no-core optical fiber with a 125 µm diameter was transformed into a symmetric and unbroken optical fiber that tapers slightly to a 45-µm-diameter waist. The laser light can be easily launched into the no-core optical fiber. The enhanced evanescent wave of the slightly tapered no-core optical fiber can attract nearby 5-µm-diameter polystyrene microparticles onto the surface of the tapered multimode optical fiber within fast flowing fluid and propel the trapped particles in the direction of the light propagation to longer delivery range than is possible using a slightly tapered telecom single-mode optical fiber. View Full-Text
Keywords: fiber optics; evanescent wave; optical manipulation fiber optics; evanescent wave; optical manipulation

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Sheu, F.-W.; Huang, Y.-S. Trapping and Propelling Microparticles at Long Range by Using an Entirely Stripped and Slightly Tapered No-Core Optical Fiber. Sensors 2013, 13, 2884-2894.

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