Quantum Nanostructures and
Nanofabrication Group

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

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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 Paper: “Designs for a quantum electron microscope”

New Paper: “Designs for a quantum electron microscope”

Mar 21, 2016 | News Articles, Our Research

One of the astounding consequences of quantum mechanics is that it allows the detection of a target using an incident probe, with only a low probability of interaction of the probe and the target. This ‘quantum weirdness’ could be applied in the field of electron...
New paper: “Infrared transmissometer to measure the thickness of NbN films” published in Applied Optics

New paper: “Infrared transmissometer to measure the thickness of NbN films” published in Applied Optics

Jun 19, 2015 | News Articles

We built a transmissometer to determine the thickness of thin films of NbN that are deposited as the starting material for SNSPDs. The transmissometer measures the transmittance of light through NbN thin films, and the thickness of the NbN is found by fitting the...

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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