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Optical trapping of metal particles in doughnut-shaped beam emitted by photonic-crystal laser

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2 Author(s)
Sakai, K. ; Dept. of Electron. Sci. & Eng., Kyoto Univ. ; Noda, S.

Doughnut-shaped beams can trap low-index or non-transparent particles. It is demonstrated that a TEM01* mode beam emitted directly by a photonic-crystal (PC) laser can stably trap metal particles in two dimensions. Replacing a conventional Gaussian-beam laser with a PC laser overcomes the limits of conventional optical tweezers, thereby opening the way for novel applications

Published in:

Electronics Letters  (Volume:43 ,  Issue: 2 )