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arXiv 2007.04379physics.optics
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用全息光镊实现艾里光束阵列对微粒的光捕获

Experimental optical trapping of microparticles with an Airy beams array using a Holographic Optical Tweezer

Rafael A. B. Suarez, Antonio A. R. Neves, Marcos R. R. Gesualdi

摘要:

在这项工作中,我们提出了一个实验的光学陷阱的微粒与艾里光束阵列使用全息光镊。艾里光束阵列由于其无衍射和自聚焦的特性,在粒子的光学操纵中具有很大的应用前景。艾里光束阵列由N束相互对称反向加速的艾里光束组成,适用于不同的弹道,即不同的初始发射角。在此基础上,我们开发了一种用于产生无衍射光束的全息光镊系统,并利用它研究了作用在艾里光束阵列微粒上的光力分布。结果表明,通过改变艾里光束的发射角度参数,可以控制阵列的梯度和对微粒的散射力。此外,使用艾里光束阵列可以获得更大的光阱稳定性,具有以可控方式捕获和引导微粒的有趣可能性,可以应用于光学,生物和大气科学。

英文摘要:

In this work, we present the experimental optical trap of microparticles with an Airy beams array using a holographic optical tweezers. The Airy beams array are attractive for optical manipulation of particles owing to their non--diffracting and autofocusing properties. An Airy beams array is composed of N Airy beams which accelerate mutually and symmetrically in opposite direction, for different ballistic trajectories, that is, with different initial launch angles. Based on this, we developed a holographic optical tweezers system for the generation of non-diffracting beams and with it, we investigate the distribution of optical forces acting on microparticles of an Airy beams array. The results show that the gradient and scattering force of array on microparticles can be controlled through a launch angle parameter of Airy beams. In addition, it's possible to obtain greater stability for optical trap using an Airy beams array, with interesting possibilities for trapping and guiding of microparticles in a controllable way that can be applied in optical, biological and atmospheric sciences.

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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