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Edge and Surface Plasmons in Graphene Nanoribbons.
Fei, Z; Goldflam, M D; Wu, J-S; Dai, S; Wagner, M; McLeod, A S; Liu, M K; Post, K W; Zhu, S; Janssen, G C A M; Fogler, M M; Basov, D N.
Afiliação
  • Fei Z; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
  • Goldflam MD; Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States.
  • Wu JS; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
  • Dai S; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
  • Wagner M; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
  • McLeod AS; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
  • Liu MK; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
  • Post KW; Department of Physics, Stony Brook University , Stony Brook, New York 11790, United States.
  • Zhu S; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
  • Janssen GC; Department of Precision and Microsystems Engineering, Delft University of Technology , Mekelweg 2, 2628 CD Delft, Netherlands.
  • Fogler MM; Department of Precision and Microsystems Engineering, Delft University of Technology , Mekelweg 2, 2628 CD Delft, Netherlands.
  • Basov DN; Department of Physics, University of California, San Diego , La Jolla, California 92093, United States.
Nano Lett ; 15(12): 8271-6, 2015 Dec 09.
Article em En | MEDLINE | ID: mdl-26571096
ABSTRACT
We report on nano-infrared (IR) imaging studies of confined plasmon modes inside patterned graphene nanoribbons (GNRs) fabricated with high-quality chemical-vapor-deposited (CVD) graphene on Al2O3 substrates. The confined geometry of these ribbons leads to distinct mode patterns and strong field enhancement, both of which evolve systematically with the ribbon width. In addition, spectroscopic nanoimaging in the mid-infrared range 850-1450 cm(-1) allowed us to evaluate the effect of the substrate phonons on the plasmon damping. Furthermore, we observed edge plasmons peculiar one-dimensional modes propagating strictly along the edges of our patterned graphene nanostructures.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2015 Tipo de documento: Article