The self-consistent model incorporating the gain into a dispersive metamaterial nanostructure

A self-consistent model incorporating the gain into a dispersive metamaterial nanostructure was proposed and numericallysolved by parallel FDTD method. We numerically show that the losses of dispersive metamaterials can be compensated by gain with investigating the transmission, reflection and absorption data as well as the retrieved effective parameters. The systematic theoretical model for pump-probe experiments of metallic metamaterials coupled with the gain material are also well investigated.