Plasmon-Plasmon Hybridization and Bandwidth Enhancement in Nanostructured Graphene

Damon B. Farmer; Daniel Rodrigo; Tony Low; Phaedon Avouris

doi:10.1021/acs.nanolett.5b00148

Plasmon-Plasmon Hybridization and Bandwidth Enhancement in Nanostructured Graphene

Damon B. Farmer, Daniel Rodrigo, Tony Low, Phaedon Avouris

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

Graphene plasmonic structures with long-range layering periodicity are presented. Resonance energy scaling with the number of graphene layers involved in plasmonic excitation allows these structures to support multiple plasmonic modes that couple and hybridize due to their physical proximity. Hybridized states exhibit bandwidth enhancements of 100-200% compared to unhybridized modes, and resonance energies deviate from what is usually observed in coupled plasmonic systems. Origins of this behavior are discussed, and experimental observations are computationally modeled. This work is a precursor and template for the study of plasmonic hybridization in other two-dimensional material systems with layering periodicity. (Graph Presented).

Original language	English (US)
Pages (from-to)	2582-2587
Number of pages	6
Journal	Nano letters
Volume	15
Issue number	4
DOIs	https://doi.org/10.1021/acs.nanolett.5b00148
State	Published - Apr 8 2015

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

Keywords

Graphene
bandwidth
hybridization
infrared
plasmon
spectroscopy

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abstract = "Graphene plasmonic structures with long-range layering periodicity are presented. Resonance energy scaling with the number of graphene layers involved in plasmonic excitation allows these structures to support multiple plasmonic modes that couple and hybridize due to their physical proximity. Hybridized states exhibit bandwidth enhancements of 100-200% compared to unhybridized modes, and resonance energies deviate from what is usually observed in coupled plasmonic systems. Origins of this behavior are discussed, and experimental observations are computationally modeled. This work is a precursor and template for the study of plasmonic hybridization in other two-dimensional material systems with layering periodicity. (Graph Presented).",

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AU - Rodrigo, Daniel

AU - Low, Tony

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AB - Graphene plasmonic structures with long-range layering periodicity are presented. Resonance energy scaling with the number of graphene layers involved in plasmonic excitation allows these structures to support multiple plasmonic modes that couple and hybridize due to their physical proximity. Hybridized states exhibit bandwidth enhancements of 100-200% compared to unhybridized modes, and resonance energies deviate from what is usually observed in coupled plasmonic systems. Origins of this behavior are discussed, and experimental observations are computationally modeled. This work is a precursor and template for the study of plasmonic hybridization in other two-dimensional material systems with layering periodicity. (Graph Presented).

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Plasmon-Plasmon Hybridization and Bandwidth Enhancement in Nanostructured Graphene

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