M. Paul, Jenna L. Wardini, Z. J. Thompson, Andrew D. Stickel, E. Minot, Yun-Shik Lee
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Nonlinear terahertz spectroscopy of single-layer graphene
We demonstrate large THz transmission enhancement (>15%) in single-layer CVD graphene at high THz intensities (ETHz>10 kV/cm). The nonlinear effects exhibit non-Drude behavior in the THz conductivity, where THz fields induce extreme non-equilibrium electron distributions.