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利用无衍射贝塞尔光束进行粒子操控的直接轴向平面成像。

Direct axial plane imaging of particle manipulation with nondiffracting Bessel beams.

作者信息

An Sha, Peng Tong, Yan Shaohui, Zhang Peng, Li Manman, Yao Baoli

出版信息

Appl Opt. 2021 Apr 10;60(11):2974-2980. doi: 10.1364/AO.417854.

Abstract

Optical manipulation with nondiffracting beams has been attracting great interest and finding widespread applications in many fields such as chemistry, physics, and biomedicine. Generally, optical manipulation is conducted in an optical microscopy system, which, in general, only allows for imaging motions of particles in the transverse plane, rendering the observation of dynamics processes occurring in the axial plane impractical. We propose and demonstrate an optical manipulation system that incorporates an axial plane imaging module. With this system, the trapping behavior in the transverse plane and the transportation process in the axial plane of a particle immersed in a Bessel beam were acquired simultaneously in real time.

摘要

利用无衍射光束进行光学操控一直备受关注,并在化学、物理和生物医学等许多领域得到广泛应用。一般来说,光学操控是在光学显微镜系统中进行的,该系统通常只允许对横向平面内粒子的运动进行成像,使得观察轴向平面内发生的动力学过程变得不切实际。我们提出并演示了一种集成了轴向平面成像模块的光学操控系统。利用该系统,实时同时获取了浸没在贝塞尔光束中的粒子在横向平面内的捕获行为和在轴向平面内的传输过程。

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