Optically induced sieve effect for nanoparticles near a nanofiber taper
Quantum Physics
2021-03-17 v2
Abstract
We demonstrate size selective optical trapping and transport for nanoparticles near an optical nanofiber taper. Using a two-wavelength, counter-propagating mode configuration, we show that 100 nm diameter and 150 nm diameter gold nanospheres (GNSs) are trapped by the evanescent field in the taper region at different optical powers. Conversely, when one nanoparticle species is trapped the other may be transported, leading to a sieve-like effect. Our results show that sophisticated optical manipulation can be achieved in a passive configuration by taking advantage of mode behavior in nanophotonics devices.
Cite
@article{arxiv.2102.04735,
title = {Optically induced sieve effect for nanoparticles near a nanofiber taper},
author = {Mark Sadgrove and Takaaki Yoshino and Masakazu Sugawara and Yasuyoshi Mitsumori and Keiichi Edamatsu},
journal= {arXiv preprint arXiv:2102.04735},
year = {2021}
}
Comments
V2: Typos in text and figures corrected, title and abstract edited to emphasize novel content. Text edited for brevity in some places