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Proceedings Paper

Position control of micrometer-sized particle with evanescent photon force
Author(s): Sophear Nam; Norihiro Umeda; Atsuo Takayanagi
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Paper Abstract

Two evanescent fields were generated on prism surface by incidence of two laser beams from opposite side of the prism at total internal reflection angle. Using photon force of these two evanescent fields, a small particle can be moved backward and forward, and trapped on prism surface. The experimental result shows that a latex sphere of radius 10micrometers can be moved automatically between two points with an error of 9 micrometers . Trapping experiment also shows a clear effect on keeping the position of a small particle against the Brownian motion and flow of water.

Paper Details

Date Published: 5 December 2001
PDF: 7 pages
Proc. SPIE 4456, Controlling and Using Light in Nanometric Domains, (5 December 2001); doi: 10.1117/12.449531
Show Author Affiliations
Sophear Nam, Tokyo Univ. of Agriculture and Technology (United States)
Norihiro Umeda, Tokyo Univ. of Agriculture and Technology (Japan)
Atsuo Takayanagi, Tokyo Univ. of Agriculture and Technology (Japan)


Published in SPIE Proceedings Vol. 4456:
Controlling and Using Light in Nanometric Domains
Aaron Lewis; H. Kumar Wickramasinghe; Katharina H.B. Al-Shamery, Editor(s)

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