Spin-locked scattering forces in the near field of high index particles

Авторы: Canós Valero Adrià, Kislov Denis A., Gurvitz Egor A., Shamkhi Hadi K., Pavlov Alexander A., Redka D.N., Yankin Sergey S., Zeḿanek Pavel, Shalin Alexander S.
Сборник: American Institute of Physics Inc
Том: 2300
Год издания: 2020
Издательство: Australian Institute of Physics
Местоположение издательства: Australia
DOI: 10.1063/5.0031977
Аннотация: The ever-growing field of microfluidics is currently in the need of a variety of controllable components to perform operations inside microchambers. Brand-new nanophotonic approaches can significantly enhance existing capabilities via light-matter interactions. We propose a novel concept featuring dual on-chip functionality: boosted optically-driven diffusion and sorting. Recently, well-designed high-index nanoantennae have been shown to mediate strong spin-orbit coupling from a laser beam, producing subwavelength optical nanovortices that drive spiral motion of absorbing nanoparticles (NPs) by means of scattering forces. In this work, we exploit further this idea and take the first step towards the realization of directional fluid navigation, investigating near field interactions of two optical nanovortices generated by a dielectric dimer structure. © 2020 Author(s).
Добавил в систему: Шалин Александр Сергеевич

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