Plasmonic Mach–Zehnder interferometric sensor based on a metal–insulator-metal nanostructure
Shen Meng, Wang Ming †, Du Lan, Pan Ting-Ting
       

(color online) (a) Simulated 2D color map of interference spectra of plasmonic interferometers as a function of arm length L and wavelength λ. (b) Interference spectra for plasmonic interferometers with , , , and , respectively. (c) A spectrum as a function of arm length L for a fixed wavelength (823.9 nm).