Quantum Nanostructures and
Nanofabrication Group

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

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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....
New publication: “Photoemission from Plasmonic Nanoparticles”

New publication: “Photoemission from Plasmonic Nanoparticles”

Dec 21, 2016 | News Articles, Uncategorized

We demonstrate strong-field, carrier-envelope-phase-sensitive photoemission from arrays of tailored metallic nanoparticles, and we show the influence of the nanoparticle geometry and the plasmon resonance on the phase-sensitive response. Additionally, from a...

Seeking Graduate Research Assistant in superconducting-nanowire based electronics

Sep 16, 2016 | News Articles, Uncategorized

Developing superconducting-nanowire based electronics We are looking for a graduate research assistant (must be an admitted MIT graduate student) to develop novel quantum sensors, logic devices and digital circuits based on superconducting nanowires. Present projects...
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: “Dimensional Tailoring of Hydrothermally Grown Zinc Oxide Nanowire Arrays”

New Paper: “Dimensional Tailoring of Hydrothermally Grown Zinc Oxide Nanowire Arrays”

Jan 13, 2016 | News Articles

Hydrothermally synthesized ZnO nanowire arrays are critical components in a range of nanostructured semiconductor devices. The device performance is governed by relevant nanowire morphological parameters that cannot be fully controlled during bulk hydrothermal...
Microsystems Technology Laboratory (MTL) annual report is published

Microsystems Technology Laboratory (MTL) annual report is published

Aug 4, 2015 | News Articles

A showcase of MTL’s diverse and creative research, this report contains 147 abstracts submitted by 40 research groups. The QNN group’s contributions can be found here: Driving Stage for SFQ Circuits using a Single Nanocryotron Modeling Superconducting...
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...
New paper: “Control of zinc oxide nanowire array properties with electron-beam lithography templating for photovoltaic applications” accepted to Nanotechnology

New paper: “Control of zinc oxide nanowire array properties with electron-beam lithography templating for photovoltaic applications” accepted to Nanotechnology

Feb 3, 2015 | News Articles, Our Research

[abstract] We found that electron-beam lithography, a top-down approach, is a suitable prototyping method for templating and controlling hydrothermally-grown ZnO nanowires (NWs). By varying the deposition method of the ZnO seed layer, annealing and template hole...
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Recent Posts

  • New Publication on High-speed testing of superconducting electronics
  • 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

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