首页|Optical trapping capability of tornado circular Pearcey beams
Optical trapping capability of tornado circular Pearcey beams
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We systemically investigate optical trapping capability of a kind of tornado waves on Rayleigh particles.Such tornado waves are named as tornado circular Pearcey beams(TCPBs)and produced by combining two circular Pearcey beams with different radii.Our theoretical exploration delves into various aspects,including the propagation dynamics,energy flux,orbital angular momentum,trapping force,and torque characteristics of TCPBs.The results reveal that the orbital angular momentum,trapping force,and torque of these beams can be finely tuned through the judicious manipulation of their topological charges(l1 and l2).Notably,we observe a precise control mechanism wherein the force diminishes with|l1+l2| and |l1-l2|,while the torque exhibits enhancement by decreasing solely with |l1+l2| or increasing with |l1-l2|.These results not only provide quantitative insights into the optical trapping performance of TCPBs but also serve as a valuable reference for the ongoing development of innovative photonic tools.
trapping capabilitytornado beamsautofocusing
刘娜娜、唐晓莹、刘舜禹、梁毅
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Guangxi Key Laboratory for Relativistic Astrophysics,Center on Nanoenergy Research,Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems Integration,School of Physical Science and Technology,Guangxi University,Nanning 530004,China
State Key Laboratory of Featured Metal Materials and Lifecycle Safety for Composite Structures,Nanning 530004,China
国家自然科学基金广西自然科学基金广西自然科学基金Innovation Project of Guangxi Graduate Education
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