Quantum Nanostructures and
Nanofabrication Group

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

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New Publication: Photolithography-compatible three-terminal superconducting switch for driving CMOS loads

Oct 27, 2025 | Our Research

A new paper written by the group was recently published in Physical Review Applied. Dip Joti Paul, Tony X. Zhou, Karl K. Berggren, “Photolithography-compatible three-terminal superconducting switch for driving CMOS loads,” Physical Review Applied, 24, 2, p. 024060,...

New Publication: Determination of mid-infrared refractive indices of superconducting thin films using Fourier transform infrared spectroscopy

Aug 1, 2025 | Our Research

A new publication written by the group on was recently published in Applied Physics Letters. Dip Joti Paul, Tony X. Zhou, and Karl K. Berggren, “Determination of mid-infrared refractive indices of superconducting thin films using Fourier transform infrared...

New Publication: Bandwidth of Lightwave-Driven Electronic Response from Metallic Nanoantennas

Jun 3, 2025 | Our Research

A new publication written by the group was just published in Nano Letters. Matthew Yeung, Lu-Ting Chou, Felix Ritzkowsky, Marco Turchetti, Karl K. Berggren, Shih-Hsuan Chih, Philip D. Keathley, “: Bandwidth of Lightwave-Driven Electronic Response from Metallic...

New Publication: A superconducting full-wave bridge rectifier

May 13, 2025 | News Articles, Our Research

A new publication written by the group on a superconducting diode was just published in Nature Electronics. Matteo Castellani, Owen Medeiros, Alessandro Buzzi, Reed A. Foster, Marco Colangelo and Karl K. Berggren.M. Castellani, O. Medeiros, A. Buzzi, R. A. Foster, M....

New Publication: On-chip petahertz electronics for single-shot phase detection

Dec 5, 2024 | News Articles, Our Research

An international team of researchers including members of the Quantum-Nanostructures and Nanofabrication group at MIT, Deutsches-Elektronen-Synchrotron (DESY, Germany), Max-Planck for the Structure and Dynamics of Matter (Germany) and WiredSense published a manuscript...

New Publication: Lightwave Electronic Harmonic Frequency Mixing

Sep 9, 2024 | News Articles, Our Research

New publication: Matthew Yeung, Lu-Ting Chou, Marco Turchetti, Felix Ritzkowsky, Karl K. Berggren, and Philip D. Keathley, “Lightwave Electronic Harmonic Frequency Mixing,” Science Advances, 10, 33, (2024)  Image credit to Sampson Wilcox. Abstract Electronic frequency...

New Publication: Effects of Helium Ion Exposure on the Single-Photon Sensitivity of MgB₂ and NbN Detectors

Jul 24, 2024 | News Articles, Our Research

New publication: Emma Batson, Francesca Incalza, Matteo Castellani, Marco Colangelo, Ilya Charaev, Andreas Schilling, Sergey Cherednichenko, and Karl K. Berggren. “Effects of Helium Ion Exposure on the Single-Photon Sensitivity of MgB₂ and NbN Detectors,”...

New Publication: Single-photon detection using large-scale high-temperature MgB2 sensors at 20 K

May 24, 2024 | News Articles, Our Research

Full article citation: I. Charaev et al., “Single-photon detection using large-scale high-temperature MgB2 sensors at 20 K,” Nat Commun, vol. 15, no. 1, p. 3973, May 2024. The article is Open Access and can be viewed here. Abstract Ultra-fast single-photon detectors...
News Article: Interaction Detection with Attosecond Perfection

News Article: Interaction Detection with Attosecond Perfection

Sep 26, 2022 | News Articles

Mina Bionta explores how light interacts with matter by capturing snapshots of those interactions on the timescale of the light’s oscillations. See the article in APS Physics here.
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...
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Recent Posts

  • New Publication: Photolithography-compatible three-terminal superconducting switch for driving CMOS loads
  • Community Outreach Event: Appalachian Optics Outreach Event 2025
  • New Publication: Determination of mid-infrared refractive indices of superconducting thin films using Fourier transform infrared spectroscopy
  • Joey Alongi, Reed Foster, and DJ Paul awarded fellowships
  • QNN Summer 2025 Newsletter

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