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

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...

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Fall 2024 QNN Newsletter

Group photo from ACS 2024 from San Diego with musician Post Malone. From left to right: Francesca Incalza, Alejandro Simon, Emma Batson, and Matteo Castellani (rightmost two are not group members)Dear QNN Group Members, Alums and Affiliates, The summer and early fall...

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New Publication: Lightwave Electronic Harmonic Frequency Mixing

New publication: Matthew Yeung, Lu-Ting Chou, Marco Turchetti, Felix Ritzkowsky, Karl K. Berggren, and Philip D. Keathley, “Lightwave Electronic Harmonic Frequency Mixing,” Science Advances, 10, 33, (2024)  Image credit to Sampson Wilcox. Abstract Electronic frequency...

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