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Direct Observation of Infrared Plasmonic Fano Antiresonances by a Nanoscale Electron Probe.
Smith, Kevin C; Olafsson, Agust; Hu, Xuan; Quillin, Steven C; Idrobo, Juan Carlos; Collette, Robyn; Rack, Philip D; Camden, Jon P; Masiello, David J.
Afiliação
  • Smith KC; Department of Physics, University of Washington, Seattle, Washington 98195, USA.
  • Olafsson A; Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA.
  • Hu X; Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA.
  • Quillin SC; Department of Chemistry, University of Washington, Seattle, Washington 98195, USA.
  • Idrobo JC; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Collette R; Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA.
  • Rack PD; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
  • Camden JP; Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA.
  • Masiello DJ; Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, USA.
Phys Rev Lett ; 123(17): 177401, 2019 Oct 25.
Article em En | MEDLINE | ID: mdl-31702260
ABSTRACT
In this Letter, we exploit recent breakthroughs in monochromated aberration-corrected scanning transmission electron microscopy (STEM) to resolve infrared plasmonic Fano antiresonances in individual nanofabricated disk-rod dimers. Using a combination of electron energy-loss spectroscopy and theoretical modeling, we investigate and characterize a subspace of the weak coupling regime between quasidiscrete and quasicontinuum localized surface plasmon resonances where infrared plasmonic Fano antiresonances appear. This work illustrates the capability of STEM instrumentation to experimentally observe nanoscale plasmonic responses that were previously the domain only of higher-resolution infrared spectroscopies.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos
Texto completo
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XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos