Edge and Surface Plasmons in Graphene Nanoribbons

Z. Fei; M. D. Goldflam; J. S. Wu; S. Dai; M. Wagner; A. S. McLeod; M. K. Liu; K. W. Post; S. Zhu; G. C.A.M. Janssen; M. M. Fogler; D. N. Basov

doi:10.1021/acs.nanolett.5b03834

Edge and Surface Plasmons in Graphene Nanoribbons

Z. Fei, M. D. Goldflam, J. S. Wu, S. Dai, M. Wagner, A. S. McLeod, M. K. Liu, K. W. Post, S. Zhu, G. C.A.M. Janssen, M. M. Fogler, D. N. Basov

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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.

Original language	English (US)
Pages (from-to)	8271-8276
Number of pages	6
Journal	Nano letters
Volume	15
Issue number	12
DOIs	https://doi.org/10.1021/acs.nanolett.5b03834
State	Published - Dec 9 2015
Externally published	Yes

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Publisher Copyright:
© 2015 American Chemical Society.

Keywords

CVD graphene
Graphene nanoribbons
edge plasmons
nano-infrared imaging
plasmon-phonon coupling

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title = "Edge and Surface Plasmons in Graphene Nanoribbons",

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.",

keywords = "CVD graphene, Graphene nanoribbons, edge plasmons, nano-infrared imaging, plasmon-phonon coupling",

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AU - Fei, Z.

AU - Goldflam, M. D.

AU - Wu, J. S.

AU - Dai, S.

AU - Wagner, M.

AU - McLeod, A. S.

AU - Liu, M. K.

AU - Post, K. W.

AU - Zhu, S.

AU - Janssen, G. C.A.M.

AU - Fogler, M. M.

AU - Basov, D. N.

PY - 2015/12/9

Y1 - 2015/12/9

N2 - 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.

AB - 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.

KW - CVD graphene

KW - Graphene nanoribbons

KW - edge plasmons

KW - nano-infrared imaging

KW - plasmon-phonon coupling

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SP - 8271

EP - 8276

JO - Nano letters

JF - Nano letters

IS - 12

ER -

Edge and Surface Plasmons in Graphene Nanoribbons

Abstract

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Keywords

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