Optical vortex trapping of particles

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作者：
Worcester Polytechnic Inst, Worcester, United States [1 ]
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来源：
Conf Proc Laser Electr Optic Soc Annu Meet | / 155-156期
关键词：
Computer generated holography - Dielectric materials - Electromagnetic wave diffraction - Focusing - Laser beam effects - Light reflection - Microscopes - Polystyrenes - Refractive index - Spheres;
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摘要：
This paper demonstrates that a low-index dielectric particle (np 0) can be stably trapped in three-dimensions using a stationary, focused Gaussian beam containing an optical vortex. This work is the first demonstration of three-dimensional trapping of a spherical low-index particle using a single, stationary beam. Vortex traps allow the trapping of low- and high-index particles with less risk of damage and better isolation.
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