Quantum Nanostructures and
Nanofabrication Group

Prof. Karl K. Berggren

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 the superconductive devices. Our research combines electrical engineering, physics, and materials science and helps extend the limits of nanoscale engineering.


Prof. Berggren becomes an AAAS Fellow
Professor Berggren has been elected as a fellow of the American Association for the Advancement of Science (AAAS) for his contributions to methods of nanofabrication, superconductive quantum circuits, photodetectors, high-speed superconductive electronics,... Read more >>
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New Paper: “Free space-coupled superconducting nanowire single photon detectors for infrared optical communications”
This paper describes the construction of a cryostat and an optical system with a free-space coupling efficiency of 56.5% +/- 3.4% to a superconducting nanowire single-photon detector (SNSPD) for infrared quantum communication... Read more >>
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Group Members Win OSA Award
The Logic Analysis Tool (LAT) team received the Optical Society's 2015 Paul F. Forman Team Engineering Excellence Award. Professor Karl Berggren, Dr. Kristen Sunter, and Dr. Faraz Najafi participated in this... Read more >>
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Congratulations Faraz, Adam, and Vitor!
Congratulations to Faraz Najafi, Adam McCaughan, and Vitor Manfrinato on their graduations! Check out their theses below: Faraz Najafi: Superconducting Nanowire Single-Photon Detectors: New Detector Architectures and Integration with Photonic Chips Vitor Manfrinato: Electron-beam... Read more >>
New Book Chapter: “Self-assembly of block copolymers by graphoepitaxy”
We have written a book chapter about the self-assembly of block copolymers by graphoepitaxy. In the fabrication of a desired block copolymer (BCP) nanostructure for a particular application, a key challenge... Read more >>
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The nanocryotron: A superconducting-nanowire three-terminal electrothermal device