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Proceedings Paper

Manipulation of nanoparticles with tailored optical focal field
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Paper Abstract

Optical trapping and manipulation using focused laser beams has emerged as a powerful tool in the biological and physical sciences. However, scaling this technique to nanoparticles remains challenging. In this work, we propose a novel strategy to optically trap nanoparticles even under the most challenging situation using engineered optical field. The distribution of the optical forces can be tailored through optimizing the spatial distribution of a vectorial optical illumination to favor the stable trapping of a variety of nanoparticles. It is shown that the proposed optical tweezers has the ability of supporting stable three-dimensional trapping for nanoparticles while avoiding trap destabilization due to optical overheating. Besides, the interaction between the angular momentum of the light and the nanoparticle is also explored to control the movement behavior of the nanoparticle. The technique presented in this work offers a versatile solution for trapping nanoparticles and may open up new avenues for optical manipulation.

Paper Details

Date Published: 24 April 2018
PDF: 4 pages
Proc. SPIE 10712, Optical Manipulation Conference, 107120F (24 April 2018); doi: 10.1117/12.2319002
Show Author Affiliations
Guanghao Rui, Southeast Univ. (China)
Bing Gu, Southeast Univ. (China)
Yiping Cui, Southeast Univ. (China)

Published in SPIE Proceedings Vol. 10712:
Optical Manipulation Conference
Takashige Omatsu; Hajime Ishihara; Keiji Sasaki, Editor(s)

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