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
Congrats to John Simonaitis and Owen Medeiros on their successful Theses Defenses!
In May 2025, we congratulates Drs. John Simonaitis and Dr. Owen Medeiros on their thesis defenses! Owen Medeiros successfully defended his PhD thesis entitled "Superconducting Nanowire Integrated Circuits for Scalable Cryogenic Memory" on May 13, 2025. The talk...
New Publication: Bandwidth of Lightwave-Driven Electronic Response from Metallic Nanoantennas
A new publication written by the group was just published in Nano Letters. Matthew Yeung, Lu-Ting Chou, Felix Ritzkowsky, Marco Turchetti, Karl K. Berggren, Shih-Hsuan Chih, Philip D. Keathley, “: Bandwidth of Lightwave-Driven Electronic Response from Metallic...
New Publication: A superconducting full-wave bridge rectifier
A new publication written by the group on a superconducting diode was just published in Nature Electronics. Matteo Castellani, Owen Medeiros, Alessandro Buzzi, Reed A. Foster, Marco Colangelo and Karl K. Berggren.M. Castellani, O. Medeiros, A. Buzzi, R. A. Foster, M....
Dr Keathley’s Talk on Nanoscale Petahertz Electronics now available
Dr. Donnie Keathley's talk on Nanoscale Patahertz Electronics is now available on Optica's website here. The talk took place during the Frontiers in Optics 2024 conference.Abstract This talk overviews developments in nanoscale petahertz electronics, including our work...
QNN Winter 2025 Newsletter
Dear QNN Group Members, Alums and Affiliates, We are excited to share with you our Winter 2025 group newsletter. First of all, we are happy to share that Karl has been appointed as Faculty Head of EE at MIT! Please join us in congratulating him on his new role. We...