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


Dane awarded NASA Space Technology Research Fellowship
Congrats to Andrew Dane, Graduate Research Assistant in the QNN group, was awarded a NASA Space Technology Research Fellowship, class of 2014.  His research topic is "Superconducting Nanowire Single Photon... Read more >>
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New paper: “Eight-fold signal amplification of a superconducting nanowire single-photon detector using a multiple-avalanche architecture” accepted to Optics Express
[pdf] [abstract] Superconducting nanowire avalanche single-photon detectors (SNAPs) with n parallel nanowires are advantageous over single-nanowire detectors because their output signal amplitude scales linearly with n. However, the SNAP architecture has not been viably demonstrated... Read more >>
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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.
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The nanocryotron: A superconducting-nanowire three-terminal electrothermal device