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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 3 — Feb. 1, 2010
  • pp: 2579–2587

Influence of excitation and collection geometry on the dark field spectra of individual plasmonic nanostructures

Mark W. Knight, Jonathan Fan, Federico Capasso, and Naomi J. Halas  »View Author Affiliations

Optics Express, Vol. 18, Issue 3, pp. 2579-2587 (2010)

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Dark field microspectroscopy is the primary method for the study of plasmon modes of individual metallic nanostructures. Light from a plasmonic nanostructure typically scatters with a strong angular and modal dependence, resulting in significant variations in the observed spectral response depending on excitation and collection angle and polarization of incident light. Here we examine how spectrally dependent radiation patterns arising from an individual plasmonic nanoparticle, positioned on a dielectric substrate, affect the detection of its plasmon modes. Careful consideration of excitation and collection geometry is of critical concern in quantitative studies of the optical response of these nanoparticle systems.

© 2010 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.0260) Physical optics : Physical optics
(290.5820) Scattering : Scattering measurements
(240.3990) Optics at surfaces : Micro-optical devices

ToC Category:
Optics at Surfaces

Original Manuscript: December 16, 2009
Revised Manuscript: January 5, 2010
Manuscript Accepted: January 11, 2010
Published: January 22, 2010

Mark W. Knight, Jonathan Fan, Federico Capasso, and Naomi J. Halas, "Influence of excitation and collection geometry on the dark field spectra of individual plasmonic nanostructures," Opt. Express 18, 2579-2587 (2010)

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