Three wave mixing enhancement in metal-dielectric-metal nanostructures

摘要

Nonlinear processes are investigated in plasmonic nanostructures which display Fabry-Perot resonances. This study focuses on the impact of the resonator geometry on the efficiency of second order effects implying 2 or 3 different wavelengths. These resonances heavily concentrate the electric field, allowing significant enhancement of the local nonlinear polarization and subsequently of the nonlinearly generated signals.