Journal
OPTICS EXPRESS
Volume 27, Issue 20, Pages 27777-27785Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.27.027777
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Funding
- Ministry of Science and Technology of the People's Republic of China [2017YFB0503100]
- Ministry of Education of the People's Republic of China [2016XZZX004-01, 2017QN81005, 2018FZA5002]
- National Natural Science Foundation of China [11474254]
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In this work, the radiation force on a Rayleigh dielectric particle induced by the partially coherent circular Airy beam (PCCAB) is investigated. Our numerical results show that the PCCAB can be used to trap and manipulate particles. The radiation force distribution and trapping stability have been analyzed under different coherent lengths. It is found that, with the increase of the spatial coherent length, the radiation force is increased and the particle can be stably trapped at more points. Therefore, the radiation force as well as the depth of potential well can be effectively modulated by controlling the spatial coherent length in optical micromanipulation. The trapping properties of PCCAB have also been studied under other different parameters, including the scale factor and initial radius. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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