M Pu, N Yao, C Hu, X Xin, Z Zhao, C Wang, X Luo - Optics Express, 2010 - opg.optica.org
Directional coupler (DC) and nonlinear Mach-Zehnder interferometer (MZI) based on metal-
insulator-metal (MIM) plasmonic waveguide are investigated numerically. We show that the …