title: Plasmonic fano nanoantennas for on-chip separation of wavelength-encoded optical signals.
abstract: Here we suggest and realize an ultracompact plasmonic spectral-band demultiplexer for telecommunication wavelengths integrated onto an optical waveguide that couples two wavelength-encoded optical signals in the O- and the C-band in opposite directions of a silicon waveguide. In this way, we demonstrate a plasmonic key element for on-chip optical data processing that can also be used as a functional link between on- and off-chip optical signals.
authors.affiliation: Nonlinear Physics Centre and Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
authors.forename: Rui
authors.initials: R
authors.lastname: Guo
authors.affiliation: Nonlinear Physics Centre and Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
authors.forename: Manuel
authors.initials: M
authors.lastname: Decker
authors.affiliation: Nonlinear Physics Centre and Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
authors.forename: Frank
authors.initials: F
authors.lastname: Setzpfandt
authors.affiliation: Nonlinear Physics Centre and Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
authors.forename: Isabelle
authors.initials: I
authors.lastname: Staude
authors.affiliation: Nonlinear Physics Centre and Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
authors.forename: Dragomir N
authors.initials: DN
authors.lastname: Neshev
authors.affiliation: Nonlinear Physics Centre and Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
authors.forename: Yuri S
authors.initials: YS
authors.lastname: Kivshar
keywords: Fano resonance; Plasmonic nanoantenna; on-chip integration; spectral-band demultiplexing