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Proceedings Paper

Remote-Raman spectroscopy of optically trapped particles by utilizing a hollow optical fiber
Author(s): T. Katagiri; Y. Morisaki; Y. Matsuura
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Paper Abstract

A fiber-optic probe based on a hollow optical fiber was developed for highly-sensitive remote-Raman measurements of particles in solution. A lens mounted at the distal end of the fiber was optimally designed to suppress the spherical aberration and maximize the numerical aperture by the ray-optics method, and fabricated by polishing a SrTiO3 ball of 1 mm diameter. Polystyrene particles of 60 μm diameter dispersed in NaCl aqueous solution were three-dimensionally trapped by the prototype probe. The Raman spectrum of the polystyrene particle was clearly observed when the particle was optically trapped at the beam focus.

Paper Details

Date Published: 28 August 2010
PDF: 6 pages
Proc. SPIE 7762, Optical Trapping and Optical Micromanipulation VII, 776235 (28 August 2010); doi: 10.1117/12.864537
Show Author Affiliations
T. Katagiri, Tohoku Univ. (Japan)
Y. Morisaki, Tohoku Univ. (Japan)
Y. Matsuura, Tohoku Univ. (Japan)


Published in SPIE Proceedings Vol. 7762:
Optical Trapping and Optical Micromanipulation VII
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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