Experimental and theoretical study of the single-beam optical fiber trap

Kozo Taguchi; Kentaro Atsuta; Takeshi Nakata; Masahiro Ikeda

doi:10.1117/12.364445

29 September 1999 Experimental and theoretical study of the single-beam optical fiber trap

Kozo Taguchi, Kentaro Atsuta, Takeshi Nakata, Masahiro Ikeda

Proceedings Volume 3891, Electronics and Structures for MEMS; (1999) https://doi.org/10.1117/12.364445
Event: Asia Pacific Symposium on Microelectronics and MEMS, 1999, Gold Coast, Australia

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.

Citation Download Citation

Kozo Taguchi, Kentaro Atsuta, Takeshi Nakata, and Masahiro Ikeda "Experimental and theoretical study of the single-beam optical fiber trap", Proc. SPIE 3891, Electronics and Structures for MEMS, (29 September 1999); https://doi.org/10.1117/12.364445

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