Quantum Nanostructures and
Nanofabrication Group

Prof. Karl K. Berggren and Dr. P. Donald Keathley

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New Publication: “Large-Area Superconducting Nanowire Single-Photon Detectors for Operation at Wavelengths up to 7.4 μm”

New Publication: “Large-Area Superconducting Nanowire Single-Photon Detectors for Operation at Wavelengths up to 7.4 μm”

Jul 19, 2022 | News Articles

The optimization of superconducting thin-films has pushed the sensitivity of superconducting nanowire single-photon detectors (SNSPDs) to the mid-infrared (mid-IR). Earlier demonstrations have shown that straight tungsten silicide nanowires can achieve unity internal...
Marco Turchetti awarded Best Invited Poster at EIPBN

Marco Turchetti awarded Best Invited Poster at EIPBN

Jun 21, 2017 | News Articles, Uncategorized

Congratulations to Marco Turchetti for being awarded Best Invited Poster at this year’s EIPBN conference in Orlando, FL. Details regarding his poster abstract may be found below: Aberration-Corrected Quantum Electron Microscopy Marco Turchetti, Chung-Soo Kim,...
New publication: “A nanofabricated, monolithic, path-separated electron interferometer”

New publication: “A nanofabricated, monolithic, path-separated electron interferometer”

May 23, 2017 | News Articles, Uncategorized

We describe a modular, self-aligned, amplitude-division electron interferometer in a conventional transmission electron microscope. The interferometer consists of two 45-nm-thick silicon layers separated by 20 μm. This interferometer is fabricated from a...

New publication: “Single-photon imager based on a superconducting nanowire delay line”

Apr 14, 2017 | News Articles

We demonstrate a scalable single-photon imager using a single continuous superconducting nanowire that is not only a single-photon detector but also functions as an efficient microwave delay line. In this context, photon-detection pulses are guided in the nanowire and...
New publication: “A nanocryotron comparator can connect single-flux-quantum circuits to conventional electronics”

New publication: “A nanocryotron comparator can connect single-flux-quantum circuits to conventional electronics”

Mar 8, 2017 | News Articles, Uncategorized

We demonstrate the use of a single three-terminal superconducting-nanowire device, called the nanocryotron (nTron), as a digital comparator to combine SFQ circuits with mature semiconductor circuits such as complementary metal oxide semiconductor (CMOS) circuits....
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Recent Posts

  • QNN Summer 2025 Newsletter
  • Karl K. Berggren selected as the Julius A. Stratton Professor in Electrical Engineering and Physics
  • Congrats to John Simonaitis and Owen Medeiros on their successful Theses Defenses!
  • New Publication: Bandwidth of Lightwave-Driven Electronic Response from Metallic Nanoantennas
  • New Publication: A superconducting full-wave bridge rectifier

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