Quantum Nanostructures and
Nanofabrication Group

Prof. Karl K. Berggren and Dr. P. Donald Keathley

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.


News Article: Interaction Detection with Attosecond Perfection
Mina Bionta explores how light interacts with matter by capturing snapshots of those interactions on the timescale of the light’s oscillations. See the article in APS Physics here.
QNN Quarterly Newsletter
Dear QNN Group Members, Alums and Affiliates, Welcome to another issue of our quarterly(ish) newsletter. The group is feeling stable these days… new programs are starting and old ones are... Read more >>
New Publication: “Large-Area Superconducting Nanowire Single-Photon Detectors for Operation at Wavelengths up to 7.4 μm”
The optimization of superconducting thin-films has pushed the sensitivity of superconducting nanowire single-photon detectors (SNSPDs) to the mid-infrared (mid-IR). Earlier demonstrations have shown that straight tungsten silicide nanowires can achieve... Read more >>
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John Simonaitis wins Best Poster Award
John Simonaitis won best poster for the work “Coherent interactions between electrons and photons in a 10 KeV scanning electron microscope” and it was upgraded to a talk because of... Read more >>
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Alessandro Buzzi wins “Best Presentation” at WOLTE15
Alessandro Buzzi won the award for Best Presentation at WOLTE15 for his presentation entitled "Building blocks design for superconducting nanowire asynchronous logic" which took place on June 8, 2022. Presentation... Read more >>
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The nanocryotron: A superconducting-nanowire three-terminal electrothermal device