title: Coherent nonlinear optical response of graphene.
abstract: We investigate the nonlinear optical properties of graphene flakes using four-wave mixing. The corresponding third-order optical susceptibility is found to be remarkably large and only weakly dependent on the wavelength in the near-infrared frequency range. The magnitude of the response is in good agreement with our calculations based on the nonlinear quantum response theory.
authors.affiliation: School of Physics, University of Exeter, EX4 4QL, United Kingdom. E.Hendry@ex.ac.uk
authors.forename: E
authors.initials: E
authors.lastname: Hendry
authors.forename: P J
authors.initials: PJ
authors.lastname: Hale
authors.forename: J
authors.initials: J
authors.lastname: Moger
authors.forename: A K
authors.initials: AK
authors.lastname: Savchenko
authors.forename: S A
authors.initials: SA
authors.lastname: Mikhailov