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.


New Publication “A scalable multi-photon coincidence detector based on superconducting nanowires”
Coincidence detection of single photons is crucial in numerous quantum technologies and usually requires multiple time-resolved single-photon detectors. However, the electronic readout becomes a major challenge when the measurement basis... Read more >>
New Publication “Exploring proximity effects and large depth of field in helium ion beam lithography: large-area dense patterns and tilted surface exposure”
Helium ion beam lithography (HIL) is an emerging nanofabrication technique. It benefits from a reduced interaction volume compared to that of an electron beam of similar energy, and hence reduced... Read more >>
Navid Abedzadeh Highlighted by RLE
Periodically, the Research Laboratory for Electronics (RLE) at MIT highlights one research student. This month, QNN’s Navid Abedzadeh was highlighted. Navid is currently involved in the Quantum Electron Microscope project. The... Read more >>
Emily Toomey awarded 2017 Ernst A. Guillemin Thesis Award for best EE Master’s Thesis
Congratulations to Emily Toomey for being awarded the 2017 Ernst A. Guillemin Thesis Award for best electrical engineering Master's Thesis in the Department of Electrical Engineering and Computer Science. Emily's thesis,... Read more >>
Qing-Yuan Zhao awarded the 2nd prize in the Jan Evetts SuST award at EUCAS
Congratulation to former QNN post-doc Qing-Yuan Zhao for being awarded the 2nd prize in the Jan Evetts SuST award at the EUCAS conference for his paper: Qing-Yuan Zhao, Adam N.... Read more >>

The nanocryotron: A superconducting-nanowire three-terminal electrothermal device