Optically Induced Sieve Effect for Nanoparticles near a Nanofiber Taper

Mark Sadgrove, Takaaki Yoshino, Masakazu Sugawara, Yasuyoshi Mitsumori, Keiichi Edamatsu

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We demonstrate size-selective optical trapping and transport for nanoparticles near an optical nanofiber taper. Using a two-wavelength counterpropagating 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 sievelike effect. Our results show that sophisticated optical manipulation can be achieved in a passive configuration by taking advantage of mode behavior in nanophotonic devices.

本文言語English
論文番号A67
ジャーナルPhysical Review Applied
16
4
DOI
出版ステータスPublished - 2021 10月
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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