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arXiv 2302.07338physics.opticsphysics.bio-ph
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基于多路涡旋光束的光镊

Multiplexed vortex beam-based optical tweezers

Francisco M. Muñoz-Pérez, Vicente Ferrando, Walter D. Furlan, Juan C. Castro-Palacio, J. Ricardo Arias-Gonzalez, Juan A. Monsoriu

摘要:

介绍了一种用于光镊实验装置的多路复用螺旋相位掩模的设计和实现。这种衍射光学元件允许产生具有独立拓扑电荷的多个同心涡旋光束。还示出了多个同心涡旋的相位掩模的泛化。设计了一种由两个不同拓扑荷的多重涡旋组成的相位掩模。我们的实验表明,角动量的光学捕获的微粒,使轨道动力学围绕光轴独立的每个漩涡内的转移。本文还讨论了不同拓扑荷组合下,聚焦区中受限粒子的角速度与光功率的关系。

英文摘要:

The design and implementation of a multiplexed spiral phase mask in an experimental optical tweezer setup are presented. This diffractive optical element allows the generation of multiple concentric vortex beams with independent topological charges. The generalization of the phase mask for multiple concentric vortices is also shown. The design for a phase mask of two multiplexed vortices with different topological charges is developed. We experimentally show the transfer of angular momentum to the optically trapped microparticles by enabling orbiting dynamics around the optical axis independently within each vortex. The angular velocity of the confined particles versus the optical power in the focal region is also discussed for different combinations of topological charges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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