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Proceedings Paper

Nanostructured fibre tip for trapping of nanoparticles
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Paper Abstract

We propose to optically trap nanoparticles utilizing a single nanostructured glass-fiber tip. 3D translation of optically trapped nanoparticles - nano tweezers - presents vast application possibilities and has not yet been shown. The input end of the fibre probe is a standard fibre, providing easy coupling to a light source. The output end is tapered down and covered with gold, with a nanoaperture fabricated on the tip. The nanoaperture provides the strong field gradient necessary for trapping of nanoparticles. We discuss probe geometries supported by numerical simulations. The fabrication procedure for the fibre probe, using a focused ion beam, is described. A set-up for the experiments has been made and preliminary trapping results are presented.

Paper Details

Date Published: 25 February 2014
PDF: 7 pages
Proc. SPIE 8999, Complex Light and Optical Forces VIII, 89991D (25 February 2014); doi: 10.1117/12.2037240
Show Author Affiliations
Jean-Claude Tinguely, Univ. of Tromsø (Norway)
Ming Ding, Univ. of Southampton (United Kingdom)
Gilberto Brambilla, Univ. of Southampton (United Kingdom)
Andreas Hohenau, Karl-Franzens-Univ. Graz (Austria)
Joachim R. Krenn, Karl-Franzens-Univ. Graz (Austria)
Olav G. Hellesø, Univ. of Tromsø (Norway)

Published in SPIE Proceedings Vol. 8999:
Complex Light and Optical Forces VIII
David L. Andrews; Enrique J. Galvez; Jesper Glückstad, Editor(s)

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