Abstract-Multiplasmon absorption in graphene

Marinko Jablan and Darrick E. Chang

http://journals.aps.org/prl/accepted/3b079Y2dN8f15c46d97a0c128094bcdcd95b08c30

We show that graphene possesses a strong nonlinear optical response in the form of multi-plasmon absorption, with exciting implications in classical and quantum nonlinear optics. Specifically, we predict that graphene nano-ribbons can be used as saturable absorbers with low saturation intensity in the far-infrared and terahertz spectrum. Moreover, we predict that two-plasmon absorption and extreme localization of plasmon fields in graphene nano-disks can lead to a plasmon blockade effect, in which a single quantized plasmon strongly suppresses the possibility of exciting a second plasmon.