Light-induced rotation of dielectric microparticles around an optical nanofiber
Optics
2019-08-01 v1
Abstract
We experimentally demonstrate orbiting of isotropic, dielectric microparticles around an optical nanofiber that guides elliptically polarized fundamental modes. The driving transverse radiation force appears in the evanescent electromagnetic fields due to orbital angular momentum. The force direction is opposite to that of the energy flow circulation around the nanofiber. Our results verify the theoretically predicted negative optical torque on a sufficiently large particle in the vicinity of a nanofiber.
Keywords
Cite
@article{arxiv.1907.13363,
title = {Light-induced rotation of dielectric microparticles around an optical nanofiber},
author = {Georgiy Tkachenko and Ivan Toftul and Cindy Esporlas and Aili Maimaiti and Fam Le Kien and Viet Giang Truong and Síle Nic Chormaic},
journal= {arXiv preprint arXiv:1907.13363},
year = {2019}
}