The frontier of information processing lies in nanoscience and nanotechnology research. At the nanoscale, materials, and structures can be engineered to exhibit interesting new properties, some based on quantum mechanical effects. Our research focuses on developing nanofabrication technology at the few-nanometer length scale. We use these technologies to push the envelope of what is possible with photonic and electrical devices, focusing in particular on superconductive and free-electron devices. Our research combines electrical engineering, physics, and materials science and helps extend the limits of nanoscale engineering.
The nanocryotron: A superconducting-nanowire three-terminal electrothermal device
Recent QNN News
New Publication “PHz Electronic Device Design and Simulation for Waveguide-Integrated Carrier-Envelope Phase Detection”
Carrier-envelope phase (CEP) detection of ultrashort optical pulses and low-energy waveform field sampling have recently been demonstrated using direct time-domain methods that exploit optical-field photoemission from plasmonic nanoantennas. These devices are compact...
QNN Quarterly Newsletter
We’ve had a busy summer in the lab and in terms of sharing our results. Here are a number of published papers and key activities. Comings and Goings This summer we welcomed the following new group members: Kate Artyunova, UROP Matteo Castellani, EECS Grad Student...
New Publication “Physical properties of amorphous molybdenum silicide films for single-photon detectors”
We systematically investigated the physical properties of amorphous MoxSi1−x films deposited by magnetron co-sputtering. The critical temperature Tc of MoxSi1−x films increases gradually with the Mo stoichiometry x, and the highest Tc = 7.9 K was found in...
Talks at CLEO2021 Conference
Our group participated in the CLEO2021 conference with two talks. You can find the abstracts at the following links: Marco Colangelo - Impedance-matched differential SNSPDs for practical photon counting with sub-10 ps timing jitter Dario Cattozzo Mor - PHz Electronic...
New Publication “Precise, subnanosecond, and high-voltage switching enabled by gallium nitride electronics integrated into complex loads”
In this work, we report the use of commercial gallium nitride (GaN) power electronics to precisely switch complex distributed loads, such as electron lenses and deflectors. This was accomplished by taking advantage of the small form-factor, low-power dissipation, and...