Graphene Plasmonics Light–Matter Interactions at the Atomic Scale

Authored by: Pai-Yen Chen , Mohamed Farhat

Graphene Science Handbook

Print publication date:  April  2016
Online publication date:  April  2016

Print ISBN: 9781466591370
eBook ISBN: 9781466591387
Adobe ISBN:

10.1201/b19461-6

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Abstract

Graphene plasmonics, which studies the collective oscillation of massless Dirac fermions inside graphene, merges two vibrant fields of study: graphene physics and plasmonics. The propagation of surface plasmon polaritons (SPP) waves in the one-atom-thick graphene can be largely controlled by graphene's tunable surface conductivity via chemical doping or electrostatic gating. Graphene is a well-known material whose plasma frequency can range broadly from direct current (DC) to infrared, sensibly depending on the carrier density or Fermi level. The intriguing plasmonic properties of graphene open tremendous new possibilities in tunable and switchable novel terahertz (THz) and infrared optoelectronic devices, with features of compact size, ultrahigh speed, and low power consumption. In this chapter, we will review the theory and recent findings on graphene plasmonics. We present current advances and future applications of graphene plasmonics in the extreme manipulation of light at the nanoscale.

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