DEVICE FOR GENERATING ELECTRICALLY CONTROLLED PLASMONS MADE FROM A CARBON NANOTUBE FIELD EFFECT TRANSISTOR

摘要

The invention concerns a device (1) for generating surface plasmons by electrical injection, comprising at least a field effect transistor disposed on a substrate (10) comprising a source electrode (S), a drain electrode (D), a gate electrode (G) and a channel (11) comprising at least one carbon nanotube electrically connected to said source electrode (S) and to said drain electrode (D), characterised in that said device (1) comprises a set of plasmonic guide(s) (PG), one plasmonic guide (PG) of the set comprising a metal material, at least a portion (13) of the channel (11) referred to as a transmitting portion transmitting an optical wave (EL) by electroluminescence when electrical charges are injected into the channel (11), the optical wave being capable of coupling with at least one surface plasmon mode (SPP) in an associated plasmonic guide (PG), a plasmonic guide (PG) of the assembly being designed to propagate at least one surface plasmon mode (SSP) by coupling with the optical wave transmitted by an associated transmitting portion (13).