Non-linear electromagnetic response of graphene

In this Letter we show that, apart from all the fascinating and non-trivial properties of graphene predicted and observed so far, this material should demonstrate strongly non-linear electrodynamic behavior

S. A Mikhailov

2007

Scholarcy highlights

  • It is shown that the massless energy spectrum of electrons and holes in graphene leads to the strongly non-linear electromagnetic response of this system
  • Irradiation of the graphene sheet by a harmonic electromagnetic wave with the frequency Ω should lead to the emission of the higher harmonics with the frequencies mΩ, m = 3, 5, . . ., from the system
  • We have shown that irradiation of graphene by the electromagnetic wave with the frequency Ω should lead to the higher harmonics generation at frequencies 3Ω, 5Ω, et cetera
  • This estimate shows that the effect works at frequencies up to 5 − 10 THz, which opens up exciting opportunities for building new graphene devices for terahertz and sub-terahertz electronics

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