Optical trapping through the localized surface-plasmon resonance of engineered gold nanoblock pairs

HANDLE Open Access

Abstract

We have investigated the plasmonic trapping of dielectric nanoparticles by using engineered gold nanoblock pairs with ∼5-nm gaps. Pairs with surface-plasmon resonance peaks at the incident wavelength allow the trapping of 350-nm-diameter nanoparticles with 200 W/cm2 laser intensities, and their plasmon resonance properties and trapping performance are drastically modified by varying the nanoblock size of ∼20%. In addition, plasmon resonance properties of nanoblock pairs strongly depend on the direction of the linear polarization of the incident laser, which determines the trapping performance.

Journal

  • Optics Express

    Optics Express 19 (18), 17462-17468, 2011-08-29

    Optical Society of America

Details 詳細情報について

  • CRID
    1050001339009403520
  • NII Article ID
    120003340665
  • HANDLE
    2115/47135
  • ISSN
    10944087
  • Text Lang
    en
  • Article Type
    journal article
  • Data Source
    • IRDB
    • CiNii Articles

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