Applied Physics A

, Volume 112, Issue 1, pp 35–39 | Cite as

Photoemission electron microscopy of a plasmonic silver nanoparticle trimer

  • Samuel J. Peppernick
  • Alan G. Joly
  • Kenneth M. Beck
  • Wayne P. Hess
  • Jinyong Wang
  • Yi-Chung Wang
  • W. David Wei
Article

Abstract

We present a combined experimental and theoretical study to investigate the spatial distribution of photoelectrons emitted from silver-coated polystyrene nanoparticles. We use two-photon photoemission electron microscopy (2P-PEEM) to image electron emission from a silver-capped aggregate trimer. Finite difference time domain (FDTD) simulations are performed to model the intensity distributions of the electromagnetic near fields resulting from femtosecond laser excitation of localized surface plasmon oscillations in the trimer structure. We demonstrate that the predicted FDTD near-field intensity distribution reproduces the 2P-PEEM photoemission pattern.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Samuel J. Peppernick
    • 1
  • Alan G. Joly
    • 1
  • Kenneth M. Beck
    • 1
  • Wayne P. Hess
    • 1
  • Jinyong Wang
    • 2
  • Yi-Chung Wang
    • 2
  • W. David Wei
    • 2
  1. 1.Pacific Northwest National LaboratoryRichlandUSA
  2. 2.Department of Chemistry and Center for Nanostructured Electronic MaterialsUniversity of FloridaGainesvilleUSA

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