title: Tunable all-optical plasmonic rectifier in nanoscale metal-insulator-metal waveguides.
abstract: We propose a tunable all-optical plasmonic rectifier based on the nonlinear Fano resonance in a metal-insulator-metal plasmonic waveguide and cavities coupling system. We develop a theoretical model based on the temporal coupled-mode theory to study the device physics of the nanoscale rectifier. We further demonstrate via the finite difference time domain numerical experiment that our idea can be realized in a plasmonic system with an ultracompact size of ~120×800  nm². The tunable plasmonic rectifier could facilitate the all-optical signal processing in nanoscale.
authors.forename: Yi
authors.initials: Y
authors.lastname: Xu
authors.forename: Xiaomeng
authors.initials: X
authors.lastname: Wang
authors.forename: Haidong
authors.initials: H
authors.lastname: Deng
authors.forename: Kangxian
authors.initials: K
authors.lastname: Guo