期刊
SCIENTIFIC REPORTS
卷 8, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-018-20224-4
关键词
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资金
- Russian Fund for Basic Research [18-02-00414]
- Israeli Ministry of Trade and Labor-Kamin Program [96717]
- Interdisciplinary Engineering-Health Sciences Grant of Ben-Gurion University of the Negev
- Russian Federation [SP-4248.2016.1]
- Ministry of Education and Science of the Russian Federation (GOSZADANIE) [3.4982.2017/6.7]
- Tomsk Polytechnic University within Tomsk Polytechnic University Competitiveness Enhancement Program
- RFBR grant [18-58-80009]
Specialized electromagnetic fields can be used for nanoparticle manipulation along a specific path, allowing enhanced transport and control over the particle's motion. In this paper, we investigate the optical forces produced by a curved photonic jet, otherwise known as the photonic hook, created using an asymmetric cuboid. In our case, this cuboid is formed by appending a triangular prism to one side of a cube. A gold nanoparticle immersed in the cuboid's transmitted field moves in a curved trajectory. This result could be used for moving nanoparticles around obstacles; hence we also consider the changes in the photonic hook's forces when relatively large glass and gold obstacles are introduced at the region where the curved photonic jet is created. We show, that despite the obstacles, perturbing the field distribution, a particle can move around glass obstacles of a certain thickness. For larger glass slabs, the particle will be trapped stably near it. Moreover, we noticed that a partial obstruction of the photonic jet's field using the gold obstacle results in a complete disruption of the particle's trajectory.
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