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Nanoelectronics at THz frequencies
Driving and reading out nanoscale electronic devices with picosecond pulses, a thousand times faster than conventional gigahertz electronics.
University of Glasgow
Ultrafast Quantum Terahertz Nanoelectronics
We are a research group at the University of Glasgow working on Ultrafast Quantum Nanoelectronics and Quantum Technologies at Terahertz (THz) frequencies. We study and control electrons in quantum nanoelectronic devices on picosecond time scales, and build the cryogenic-compatible THz electronics that makes it possible.
Group photo, University of Glasgow cloisters
What we work on
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Quantum technologies at THz frequencies
Semiconductor qubits and quantum circuits operated at very high frequencies, so that they can work at 4 K instead of millikelvin temperatures.
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Flying electron qubits and electron interferometry
Quantum information carried by single-electron wavepackets as they propagate through a circuit, studied with electronic interferometers.
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Cryogenic THz optoelectronics
Efficient on-chip sources and detectors of picosecond electrical pulses that keep working at cryogenic temperatures.
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Nanofabrication of quantum devices
Designing and fabricating quantum nanoelectronic circuits and THz components in the James Watt Nanofabrication Centre.
Latest results
Figure from the paper
Active control of THz plasmon propagation in a one-dimensional electronic waveguide
We inject electron wavepackets as short as 4 ps into a quasi-one-dimensional electron waveguide, 10 to 40 µm long, and actively control their propagation speed. This is a building block for ultrafast quantum operations with flying electrons.
Figure from the paper
Eigenstate control of plasmon wavepackets with electron-channel blockade
Using a cavity, we isolate and select the electron conduction channels that contribute to a plasmon wavepacket, which gives precise control of its eigenstate and so of its propagation speed.
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Electronic interferometry with ultrashort plasmonic pulses
We inject ultrashort single-electron plasmonic pulses into a 14-micrometre-long electronic Mach-Zehnder interferometer, a step towards flying electron qubits operated on picosecond time scales.
News
Joe Heyes-Lynch presents his internship poster
Joe, an intern in the group, presented “High Frequency Optoelectronics for smarter Semiconductor Quantum Hardware”, on continuous-wave and pulsed laser sources for driving semiconductor qubits at THz frequencies.
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New preprint: active control of THz plasmon propagation
Our work on controlling the propagation speed of 4 ps electron wavepackets in a one-dimensional electronic waveguide is on arXiv.
Join the group
We are looking for motivated PhD students and postdoctoral researchers who want to work in quantum nanoelectronics, THz optoelectronics and cryo-optoelectronics.