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Proceedings Paper

Application of optical trapping to beam manipulation in optofluidics
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Paper Abstract

We introduce a novel method of attaining all-optical beam control in an optofluidic device by displacing an optically trapped silica micro-sphere though a light beam. The micro-sphere causes the beam to be refracted by various degrees as a function of the sphere position, providing tunable attenuation and beam-steering in the device. The device itself consists of the manipulated light beam extending between two buried waveguides which are on either side of a microfluidic channel. This channel contains the micro-spheres which are suspended in water. We simulate this geometry using the Finite Difference Time Domain method and find good agreement between simulation and experiment.

Paper Details

Date Published: 18 January 2006
PDF: 11 pages
Proc. SPIE 6038, Photonics: Design, Technology, and Packaging II, 603812 (18 January 2006); doi: 10.1117/12.651733
Show Author Affiliations
P. Domachuk, Univ. of Sydney (Australia)
S. Mutzenich, RMIT Univ. (Australia)
M. Cronin-Golomb, Univ. of Sydney (Australia)
G. Rosengarten, RMIT Univ. (Australia)
A. Mitchell, RMIT Univ. (Australia)
B. J. Eggleton, Univ. of Sydney (Australia)


Published in SPIE Proceedings Vol. 6038:
Photonics: Design, Technology, and Packaging II
Derek Abbott; Yuri S. Kivshar; Halina H. Rubinsztein-Dunlop; Shanhui Fan, Editor(s)

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