▎ 摘　　要

A model of an all-plasmonic switch based on a graphene waveguide integrated with a stub nanoresonator loaded with a quantum dot is considered. Using the full-wave numerical simulation, it is shown that successive on/off switching of the control surface plasmon - polariton wave at the input of the waveguide leads to a change in the phase of the signal plasmon - polariton wave in the nanoresonator by pi. This causes reversible switching of the device operation regime - from almost complete blocking to stable transmission of the signal plasmon - polariton wave through the waveguide. The effect is implemented at rates of similar to 0.5 THz for infrared electromagnetic waves localised in a device with a switching region of 40 x 20 nm.