Strong nonlinear optical response of graphene in the terahertz regime
- 17 August 2009
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 95 (7), 072101
- https://doi.org/10.1063/1.3205115
Abstract
We demonstrate that within the model of massless Dirac fermions, graphene has a strong nonlinear optical response in the terahertz regime. It is found that the nonlinear contribution significantly alters both the single frequency and frequency tripled optical response at experimentally relevant field strengths. The optical activity of single layer graphene is significantly enhanced by nonlinear effects, and the frequency tripled response opens the gateway to photonic and optoelectronic device applications.Keywords
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