Orbital rotation of a nanoparticle driven by optical torque of plasmonic nano-vortex field

Yuji Sunaba; Hideki Fujiwara; Christophe Pin; Keiji Sasaki

doi:10.1117/12.2633189

3 October 2022 Orbital rotation of a nanoparticle driven by optical torque of plasmonic nano-vortex field

Yuji Sunaba, Hideki Fujiwara, Christophe Pin, Keiji Sasaki

Proceedings Volume PC12198, Optical Trapping and Optical Micromanipulation XIX; PC121980L (2022) https://doi.org/10.1117/12.2633189
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States

Abstract

The ability to control nanoscale motions of nanomaterials is expected to play significant roles in various fields such as photophysics, photochemistry and biological applications. For the optical nanomanipulation, metal nanoantenna structures are widely used. These plasmonic structures can confine light into nano-sized volumes and enhance the nanoscale light-matter interactions. In this paper, we demonstrated that precise orbital rotational motion is driven by the angular momentum that is transferred from photon to plasmonic nanoantenna. We present the numerical simulation results and discussion on the mechanism of the angular momenta transfer. Then, we show the experimental results on the rotational manipulation of a nanodiamond using plasmonic trimer structure.

Conference Presentation

Citation Download Citation

Yuji Sunaba, Hideki Fujiwara, Christophe Pin, and Keiji Sasaki "Orbital rotation of a nanoparticle driven by optical torque of plasmonic nano-vortex field", Proc. SPIE PC12198, Optical Trapping and Optical Micromanipulation XIX, PC121980L (3 October 2022); https://doi.org/10.1117/12.2633189

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