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Proceedings Paper

Experimental and theoretical study of the single-beam optical fiber trap
Author(s): Kozo Taguchi; Kentaro Atsuta; Takeshi Nakata; Masahiro Ikeda
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Paper Abstract

We have developed an optical fiber trapping system and verified that micro-sphere could be trapped and manipulated by a weakly focused single laser beam emerging from an otpical fiber end, which was inserted into a sample chamber at an angle of 35 degrees. In this paper, axial and transverse trapping forces exerted on a micro-sphere were experimentally and theoretically analyzed to corroborate the single-beam optical trap using an optical fiber. Experimental results were shown to be in excellent agreement with a numerical model that predicted the axial and transverse forces acting on a sphere gave a restoring force directed back to the stable point, and transverse force played a significant role in trapping and manipulation of a micro-sized object by means of an optical fiber. Furthermore, we experimentally verified that our proposed single-beam fiber optic trapping system was most economical, much simpler to operate, and required relatively low optical power to capture particle as compared with other embodiments.

Paper Details

Date Published: 29 September 1999
PDF: 8 pages
Proc. SPIE 3891, Electronics and Structures for MEMS, (29 September 1999); doi: 10.1117/12.364445
Show Author Affiliations
Kozo Taguchi, Fukuyama Univ. (Japan)
Kentaro Atsuta, Fukuyama Univ. (Japan)
Takeshi Nakata, Fukuyama Univ. (Japan)
Masahiro Ikeda, Fukuyama Univ. (Japan)

Published in SPIE Proceedings Vol. 3891:
Electronics and Structures for MEMS
Neil W. Bergmann; Olaf Reinhold; Norman C. Tien, Editor(s)

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