This paper demonstrates real-time tracking of collective electron oscillations in an Au bowtie nanoantenna by recording photo-assisted tunneling currents. The oscillations show a non-instantaneous response with a T2 decay time of ~8 femtoseconds. Linear and nonlinear contributions to the tunneling currents were determined, and phase control of electron oscillations was illustrated. This work paves the way for on-chip light-wave electronics in quantum nanodevices.
Publisher
Nature Communications
Published On
Feb 13, 2024
Authors
Yang Luo, Frank Neubrech, Alberto Martin-Jimenez, Na Liu, Klaus Kern, Manish Garg
Tags
electron oscillations
Au bowtie nanoantenna
photo-assisted tunneling
T2 decay time
quantum nanodevices
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