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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 5, Iss. 14 — Nov. 16, 2010

Gold nanoring trimers: a versatile structure for infrared sensing

Siew Lang Teo, Vivian Kaixin Lin, Renaud Marty, Nicolas Large, Esther Alarcon Llado, Arnaud Arbouet, Christian Girard, Javier Aizpurua, Sudhiranjan Tripathy, and Adnen Mlayah  »View Author Affiliations

Optics Express, Vol. 18, Issue 21, pp. 22271-22282 (2010)

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In this work we report on the observation of surface plasmon properties of periodic arrays of gold nanoring trimers fabricated by electron beam lithography. It is shown that the localized surface plasmon resonances of such gold ring trimers occur in the infrared spectral region and are strongly influenced by the nanoring geometry and their relative positions. Based on numerical simulations of the optical extinction spectra and of the electric near-field intensity maps, the resonances are assigned to surface plasmon states arising from the strong intra-trimer electromagnetic interaction. We show that the nanoring trimer configuration allows for generating infrared surface plasmon resonances associated with strongly localized electromagnetic energy, thus providing plasmonic nanoresonators well-suited for sensing and surface enhanced near-infrared Raman spectroscopy.

© 2010 OSA

OCIS Codes
(160.4760) Materials : Optical properties
(220.0220) Optical design and fabrication : Optical design and fabrication
(240.6680) Optics at surfaces : Surface plasmons
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:
Optics at Surfaces

Original Manuscript: August 5, 2010
Revised Manuscript: September 26, 2010
Manuscript Accepted: September 28, 2010
Published: October 6, 2010

Virtual Issues
Vol. 5, Iss. 14 Virtual Journal for Biomedical Optics

Siew Lang Teo, Vivian Kaixin Lin, Renaud Marty, Nicolas Large, Esther Alarcon Llado, Arnaud Arbouet, Christian Girard, Javier Aizpurua, Sudhiranjan Tripathy, and Adnen Mlayah, "Gold nanoring trimers: a versatile structure for infrared sensing," Opt. Express 18, 22271-22282 (2010)

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