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Proceedings Paper

Towards polarization-sensitive trapping of nanoparticles in nanoring apertures
Author(s): Ivan Gusachenko; Marios Sergides; Viet Giang Truong; Síle Nic Chormaic
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Paper Abstract

Double nanohole apertures in metal films have proven to be efficient plasmonic devices for trapping nanoparticles as small as single proteins.1 To date, this technique has relied on weak transmission far beyond the wavelength cutoff, ignoring the prospect of plasmon field enhancement. In this work we present details on the design and fabrication of arrays of nanoring apertures on gold films. These devices feature efficient light localization in small gaps similar to double nanohole apertures, but additionally benefit from surface plasmon resonances in the near infrared spectrum. We perform polarization-resolved spectrometry on the arrays and discuss their potential for nanoparticle trapping.

Paper Details

Date Published: 16 September 2014
PDF: 5 pages
Proc. SPIE 9164, Optical Trapping and Optical Micromanipulation XI, 91642Y (16 September 2014); doi: 10.1117/12.2061521
Show Author Affiliations
Ivan Gusachenko, Okinawa Institute of Science and Technology (Japan)
Marios Sergides, Okinawa Institute of Science and Technology (Japan)
Viet Giang Truong, Okinawa Institute of Science and Technology (Japan)
Síle Nic Chormaic, Okinawa Institute of Science and Technology (Japan)


Published in SPIE Proceedings Vol. 9164:
Optical Trapping and Optical Micromanipulation XI
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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