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Rotational dynamics of indirect optical bound particle assembly under a single tightly focused laser
Ist Teil von
Optics express, 2023-01, Vol.31 (3), p.3804-3820
Ort / Verlag
United States
Erscheinungsjahr
2023
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
The optical binding of many particles has the potential to achieve the wide-area formation of a "crystal" of small materials. Unlike conventional optical binding, where the entire assembly of targeted particles is directly irradiated with light, if remote particles can be indirectly manipulated using a single trapped particle through optical binding, the degrees of freedom to create ordered structures can be enhanced. In this study, we theoretically investigate the dynamics of the assembly of gold nanoparticles that are manipulated using a single trapped particle by a focused laser. We demonstrate the rotational motion of particles through an indirect optical force and analyze it in terms of spin-orbit coupling and the angular momentum generation of light. The rotational direction of bound particles can be switched by the numerical aperture. These results pave the way for creating and manipulating ordered structures with a wide area and controlling local properties using scanning laser beams.
Sprache
Englisch
Identifikatoren
ISSN: 1094-4087
eISSN: 1094-4087
DOI: 10.1364/oe.479643
Titel-ID: cdi_proquest_miscellaneous_2776516478
Format
–
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