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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 17 — Aug. 18, 2008
  • pp: 13287–13295

Electric and magnetic resonances in arrays of coupled gold nanoparticle in-tandem pairs

Y. Ekinci, A. Christ, M. Agio, O. J. F. Martin, H. H. Solak, and J. F. Löffler  »View Author Affiliations

Optics Express, Vol. 16, Issue 17, pp. 13287-13295 (2008)

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We present an experimental and theoretical study on the optical properties of arrays of gold nanoparticle in-tandem pairs (nanosandwiches). The well-ordered Au pairs with diameters down to 35 nm and separation distances down to 10 nm were fabricated using extreme ultraviolet (EUV) interference lithography. The strong near-field coupling of the nanoparticles leads to electric and magnetic resonances, which can be well reproduced by Finite-Difference Time-Domain (FDTD) calculations. The influence of the structural parameters, such as nanoparticle diameter and separation distance, on the hybridized modes is investigated. The energy and lifetimes of these modes are studied, providing valuable physical insight for the design of novel plasmonic structures and metamaterials.

© 2008 Optical Society of America

OCIS Codes
(160.3900) Materials : Metals
(160.4670) Materials : Optical materials
(260.2110) Physical optics : Electromagnetic optics

ToC Category:

Original Manuscript: June 30, 2008
Revised Manuscript: July 25, 2008
Manuscript Accepted: July 28, 2008
Published: August 13, 2008

Y. Ekinci, A. Christ, M. Agio, O. J. F. Martin, H. H. Solak, and J. F. Löffler, "Electric and magnetic resonances in arrays of coupled gold nanoparticle in-tandem pairs," Opt. Express 16, 13287-13295 (2008)

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