How the size of a particle approaching dielectric interface influences its behavior

Petr Jakl; Mojmir Sery; Jan Jezek; Pavel Zemanek

doi:10.1117/12.557189

18 October 2004 How the size of a particle approaching dielectric interface influences its behavior

Petr Jakl, Mojmir Sery, Jan Jezek, Pavel Zemanek

Proceedings Volume 5514, Optical Trapping and Optical Micromanipulation; (2004) https://doi.org/10.1117/12.557189
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

The influence of size of the trapped object on its position near the dielectric interface is studied experimentally. The trapping beam is reflected on a surface and creates weak standing wave component in resulting field distribution. This component causes unwanted jumps of the trapped particle, when the beam waist moves axially in the surface vicinity. Particles of different sizes are more and less influenced by the standing wave, respectively. The position of the trapped particle is measured with quadrant photodiode and photomultiplier tube at the same time.

Citation Download Citation

Petr Jakl, Mojmir Sery, Jan Jezek, and Pavel Zemanek "How the size of a particle approaching dielectric interface influences its behavior", Proc. SPIE 5514, Optical Trapping and Optical Micromanipulation, (18 October 2004); https://doi.org/10.1117/12.557189

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