Wideband plasmon-enhanced nonlinearity in two-dimensional layer materials

Here, we will report our recent results on plasmon-enhanced nonlinear optical responses in two-dimensional monolayer materials (with the enhancement factor up to three-order of magnitude with a wide operation bandwidth). Such a significant and wideband enhancement can be well explained by the highly localized field in the plasmonic structures, which is interesting for various nonlinear photonic and optoelectronic applications.