The effect of microscopic scattering on the nonlinear transmission of terahertz fields through monolayer graphene

Abstract

We consider the nonlinear terahertz response of n-doped monolayer graphene at room temperature using a microscopic theory of carrier dynamics. Our tight-binding model treats the carrier-field interaction in the length gauge, includes phonon as well as short-range neutral-impurity scattering, and fully accounts for the intrinsic nonlinear response of graphene near the Dirac point. Treating each interaction microscopically allows us to separate contributions from current clipping, phonon creation, and elastic impurity scattering. Although neutral impurity scattering and phonon scattering are both highly energy-dependent, we find that they impact conduction-band electron dynamics very differently, and that together they can help explain experimental results concerning field-dependent terahertz transmission through graphene.

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Cited by in corpus (4)

• Valley-polarization in biased bilayer graphene using circularly polarized light
• The effects of microscopic scattering on terahertz third harmonic generation in monolayer graphene
• Pump-induced terahertz anisotropy in bilayer graphene
• The impact of nitrogen doping on the linear and nonlinear terahertz response of graphene