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
Malick Sere receives the 2026 Frederick C. Hennie III Teaching Award
QNN grad student Malick Sere was awarded the 2026 Frederick C. Hennie III Teaching Award in recognition of his outstanding contributions to teaching within the EECS department. He worked with our own Donnie Keathley as a TA in the Spring semester for 6.2410 -...
New Publication: Field-resolved observation of exciton coherence in a van der Waals magnet
A new publication written from the group using nanoantenna field-sampling techniques to observe femtosecond-scale coherent exciton dynamics in CrSBr was recently published in Nature Materials. Matthew Yeung, Alexander von Hoegen, Emil Viñas Boström, Fangzhou Zhao,...
QNN Newsletter from IAP 2026
Dear QNN Group Members, Alums and Affiliates, Hope everyone is enjoying the start to Spring! We are excited to share updates from the QNN group over the last months. It has been a while since our last newsletter, so a lot of activity to report. In particular we...
New Publication: Electron energy loss spectroscopy of two-dimensional materials in a scanning electron microscope
A new publication written by the group on the characterization of 2D materials in a scanning electron microscope was published in Physical Review B. John W. Simonaitis, Joseph A. Alongi, Benjamin Slayton, William P. Putnam, Karl K. Berggren, and Phillip D. Keathley,...
New Publication on High-speed testing of superconducting electronics
A new publication written by the group on custom sensing equipment was recently published in the Journal of Instrumentation. Reed A. Foster, Stephen Kandeh, Owen Medeiros, Alejandro Simon, Matteo Castellani, and Karl K. Berggren. 2025. “Time-Tagging Data...