Far-Infrared Graphene Plasmonic Crystals for Plasmonic Band Engineering | Zendy

Kitty Y. M. Yeung | Zendy; Jing Yee Chee | Zendy; Hosang Yoon | Zendy; Yi Song | Zendy; Jing Kong | Zendy; Donhee Ham | Zendy

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Far-Infrared Graphene Plasmonic Crystals for Plasmonic Band Engineering

Author(s) -

Kitty Y. M. Yeung,

Jing Yee Chee,

Hosang Yoon,

Yi Song,

Jing Kong,

Donhee Ham

Publication year - 2014

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/nl500158y

Subject(s) - plasmon , graphene , delocalized electron , infrared , materials science , optoelectronics , graphene nanoribbons , photonic crystal , optics , nanotechnology , chemistry , physics , organic chemistry

We introduce far-infrared graphene plasmonic crystals. Periodic structural perturbation-in a proof-of-concept form of hexagonal lattice of apertures-of a continuous graphene medium alters delocalized plasmonic dynamics, creating plasmonic bands in a manner akin to photonic crystals. Fourier transform infrared spectroscopy demonstrates band formation, where far-infrared irradiation excites a unique set of plasmonic bands selected by phase matching and symmetry-based selection rules. This band engineering may lead to a new class of graphene plasmonic devices.

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