Open AccessTunable multi-channel wavelength demultiplexer based on MIM plasmonic nanodisk resonators at telecommunication regime
Author(s) -
Guoxi Wang,
Hua Lü,
Xueming Liu,
Dong Mao,
Lina Duan
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.003513
Subject(s) - resonator , finite difference time domain method , wavelength division multiplexing , demultiplexer , plasmon , optics , wavelength , materials science , optoelectronics , channel spacing , optical communication , channel (broadcasting) , telecommunications , multiplexing , physics , computer science , multiplexer
The tunable multi-channel wavelength demultiplexer (WDM) based on metal-insulator-metal plasmonic nanodisk resonators is designed and numerically investigated by utilizing Finite-Difference Time-Domain (FDTD) simulations. It is found that the channel wavelength of WDM is easily tuned by changing the geometrical parameters of the structure and the material filled in the nanodisk resonator. The multi-channel WDM structure consisting of a plasmonic waveguide and several nanodisk resonators increases the transmission up to 70% at telecommunication regime, which is two times higher than the results reported in a recent literature [Opt. Express 18, (2010)]. Our WDM can find important potential applications in highly integrated optical circuits.