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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 11 — Jun. 2, 2014
  • pp: 13308–13313

On the absorption and electromagnetic field spectral shifts in plasmonic nanotriangle arrays

Sylvain Vedraine, Renjie Hou, Peter R. Norton, and François Lagugné-Labarthet  »View Author Affiliations


Optics Express, Vol. 22, Issue 11, pp. 13308-13313 (2014)
http://dx.doi.org/10.1364/OE.22.013308


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Abstract

The behavior of the electromagnetic field interaction with gold nanotriangles organized in bow-tie arrays is investigated. A side-by-side comparison between the measured absorbance of the array and the modelled integrated electric field resonances confined around the gold structures is presented and discussed to explain the spectral shift between both parameters. Finite difference time domain calculations and Raman measurements of gold triangles of different sizes and periodicity are systematically performed. Numerical calculations show that the spectral maximum of the electric field varies in distinct areas over the metallic structures.

© 2014 Optical Society of America

OCIS Codes
(180.4243) Microscopy : Near-field microscopy
(250.5403) Optoelectronics : Plasmonics
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:
Plasmonics

History
Original Manuscript: February 19, 2014
Revised Manuscript: April 28, 2014
Manuscript Accepted: May 19, 2014
Published: May 27, 2014

Citation
Sylvain Vedraine, Renjie Hou, Peter R. Norton, and François Lagugné-Labarthet, "On the absorption and electromagnetic field spectral shifts in plasmonic nanotriangle arrays," Opt. Express 22, 13308-13313 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-11-13308


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