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.


Prof. Berggren gives Feynman Lecture: Lithography and self-assembly below 10nm
Prof. Berggren's recent talk on "Lithography and self-assembly below 10nm" was published as part of IOP's Feynman Lectures 50th Anniversary Celebration Seminar Series. The talk outlines the QNN Group's research... Read more >>
Recent Paper Editor’s Pick JVST B
Congrats to Hyung Wan Do on his recent paper being chosen as an editor's pick in JVST B.   Editor's Pick
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Congrats to Adam and Sarah for Fellowship
Congrats to Adam McCaughan and Sarah Goodman both received NSF iQuise Training Fellowships for the coming year.  Adam is continuing this fellowship, and Sarah is a new receipient.
Superconducting Devices
We design and fabricate superconducting nanowire single photon detectors (SNSPDs). SNSPDs are appropriate for many applications because they have low jitter, a fast reset time and good sensitivity to infrared... Read more >>
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The nanocryotron: A superconducting-nanowire three-terminal electrothermal device