Spectrally-dependent Z-scan measurement of the nonlinear refractive index of graphene

Abstract

The nonlinear optical behaviour of Graphene has become an important topic of investigation as it adds another facet to its growing list of electronic and mechanical properties. This work investigates the spectral dependence of the nonlinear index of refraction («2) of graphene, spanning excitation in the 800–1050 nm range, using the Z-Scan technique.