Fig. 4: Induced plasmon wavepacket in parallel electron waveguides.
From: Eigenstate control of plasmon wavepackets with electron-channel blockade
a SEM image of the device to investigate induced plasmon wavepackets. The gates coloured in yellow and purple are used to electrostatically form the circuit for the measurement. As a result, two parallel electron waveguides, which are electrically isolated, are defined. Time-resolved measurements of the induced plasmon wavepackets, injected at the Ohmic Oinj, are performed with the gate, \({{{{\rm{QPC}}}}}_{\det }\). A Fabry-Pérot (FP) cavity can be formed by creating a potential barrier with the gate, gFP, indicated in red. b Induced plasmon wavepacket without (blue curve) and with the FP cavity (orange curve). The amplitude is normalised with the maximum of the data without the FP cavity. The black solid curve is the derivative of the bare plasmon wavepacket measured in a slightly different setup (see Supplementary Fig. 7).
