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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 5 — Mar. 6, 2006
  • pp: 1965–1972

Strong coupling of light to flat metals via a buried nanovoid lattice: the interplay of localized and free plasmons

Tatiana V. Teperik, Vyacheslav V. Popov, F. Javier García de Abajo, Mamdouh Abdelsalam, Philip N. Bartlett, Tim A. Kelf, Yoshihiro Sugawara, and Jeremy J. Baumberg  »View Author Affiliations


Optics Express, Vol. 14, Issue 5, pp. 1965-1972 (2006)
http://dx.doi.org/10.1364/OE.14.001965


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Abstract

We study the optical plasmonic properties of metal surfaces which have a periodic lattice of voids buried immediately beneath their flat upper surface. Light reflection spectra calculated in the framework of a self-consistent electromagnetic multiple-scattering layer-KKR approach exhibit two types of plasmon resonances originating from the excitation of different plasmon modes: surface plasmon-polaritons propagating on the planar surface of metal and Mie plasmons localized in the buried voids. Coupling between these two types of plasma oscillation leads to an enhancement of the surface plasmon-polariton resonances even for close-packed void lattices. Our theoretical model quantitatively agrees with experimental results, demonstrating that planar surfaces can exhibit strong plasmonic field enhancements.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(160.3900) Materials : Metals
(220.4000) Optical design and fabrication : Microstructure fabrication
(240.6680) Optics at surfaces : Surface plasmons
(290.4020) Scattering : Mie theory
(290.4210) Scattering : Multiple scattering

ToC Category:
Optics at Surfaces

History
Original Manuscript: December 21, 2005
Revised Manuscript: February 8, 2006
Manuscript Accepted: February 23, 2006
Published: March 6, 2006

Virtual Issues
Vol. 1, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Tatiana V. Teperik, Vyacheslav V. Popov, F. Javier García de Abajo, Mamdouh Abdelsalam, Philip N. Bartlett, Tim A. Kelf, Yoshihiro Sugawara, and Jeremy J. Baumberg, "Strong coupling of light to flat metals via a buried nanovoid lattice: the interplay of localized and free plasmons," Opt. Express 14, 1965-1972 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-5-1965


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References

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