Quantum Nanostructures and
Nanofabrication Group

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

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New video “Optimizing Superconducting Thin Films for Nanowire Single Photon Detectors”

New video “Optimizing Superconducting Thin Films for Nanowire Single Photon Detectors”

Apr 29, 2020 | News Articles, Uncategorized

MIT Materials Research Laboratory 2019 Summer Scholar Leah Borgsmiller worked on niobium-aluminum thin films for superconducting nanowire single photon detectors in the QNN lab. Borgsmiller grew thin films, measured their superconducting transition temperature and...
New Publication “Detecting Sub-GeV Dark Matter with Superconducting Nanowires”

New Publication “Detecting Sub-GeV Dark Matter with Superconducting Nanowires”

Oct 10, 2019 | News Articles, Uncategorized

We propose the use of superconducting nanowires as both target and sensor for direct detection of sub-GeV dark matter. With excellent sensitivity to small energy deposits on electrons and demonstrated low dark counts, such devices could be used to probe electron...
New Publication “Exploring proximity effects and large depth of field in helium ion beam lithography: large-area dense patterns and tilted surface exposure”

New Publication “Exploring proximity effects and large depth of field in helium ion beam lithography: large-area dense patterns and tilted surface exposure”

May 9, 2018 | News Articles, Uncategorized

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 long-range scattering (proximity effect), higher resist sensitivity and...
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: “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

  • Joey Alongi, Reed Foster, and DJ Paul awarded fellowships
  • 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

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