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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 13298–13308

Engineering SERS via absorption control in novel hybrid Ni/Au nanovoids

Robin M. Cole, Sumeet Mahajan, Phil N. Bartlett, and Jeremy J. Baumberg  »View Author Affiliations

Optics Express, Vol. 17, Issue 16, pp. 13298-13308 (2009)

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Nanoscale voids (or ‘anti-nanoparticles’) embedded in gold films possess plasmon modes with a strong field component at the cavity entrance, radically different to nanoparticle plasmon modes. By creating Ni/Au hybrid rim nanostructures we show how selective coupling to void plasmons provides strong electric field enhancements leading to large surface-enhanced Raman scattering (SERS) signals from molecules adsorbed on the nanovoid film. Since the rim plasmon modes are relatively independent of the supporting void material these results pave the way for hybrid nanovoid structures which combine plasmonic and catalytic properties of the constituent materials in a controllable and reproducible way.

© 2009 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(220.0220) Optical design and fabrication : Optical design and fabrication

ToC Category:
Nonlinear Optics

Original Manuscript: June 17, 2009
Revised Manuscript: July 8, 2009
Manuscript Accepted: July 9, 2009
Published: July 20, 2009

Robin M. Cole, Sumeet Mahajan, Phil N. Bartlett, and Jeremy J. Baumberg, "Engineering SERS via absorption control in novel hybrid Ni/Au nanovoids," Opt. Express 17, 13298-13308 (2009)

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