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3 August 1998 Trapping microscopic particles with singular beams
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Proceedings Volume 3487, International Conference on Singular Optics; (1998)
Event: International Conference on Singular Optics, 1997, Partenit, Crimea, Ukraine
It has been shown previously that it is possible to two- dimensionally trap a microscopic absorbing particle against a substrate using a focused doughnut beam. Beam angular momentum associated with the phase singularity is transferred to the particle, causing it to rotate. A detailed consideration of the optical forces acting on a particle shows the importance of wavefront curvature for stable trapping and lead to a quantitative description of the motion of the particle in single and multiple beam traps.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
N. R. Heckenberg, T. A. Nieminen, Marlies E. J. Friese, and Halina Rubinsztein-Dunlop "Trapping microscopic particles with singular beams", Proc. SPIE 3487, International Conference on Singular Optics, (3 August 1998);

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