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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 15 — Jul. 26, 2004
  • pp: 3422–3427

Optical sensing based on plasmon coupling in nanoparticle arrays

Stefan Enoch, Romain Quidant, and Gonçal Badenes  »View Author Affiliations

Optics Express, Vol. 12, Issue 15, pp. 3422-3427 (2004)

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The performance of bi-periodic arrays of gold nano-particles for molecular sensing applications is studied using the Fourier Modal Method (FMM). We show that the electromagnetic coupling between the particles can be optimized to increase their sensitivity to a weak change of the shallow dielectric environment. Especially, arrays whose elementary cell consists of a dimer of two closely packed particles are found to be at least three times more sensitive than single particle arrays.

© 2004 Optical Society of America

OCIS Codes
(130.6010) Integrated optics : Sensors
(240.5420) Optics at surfaces : Polaritons
(260.3910) Physical optics : Metal optics

ToC Category:
Research Papers

Original Manuscript: June 11, 2004
Revised Manuscript: July 13, 2004
Published: July 26, 2004

Stefan Enoch, Romain Quidant, and Goncal Badenes, "Optical sensing based on plasmon coupling in nanoparticle arrays," Opt. Express 12, 3422-3427 (2004)

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