MIT
Quantum Nanostructures and
Nanofabrication Group

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

The frontier of information processing lies in nanoscience and nanotechnology research. At the nanoscale, materials and structures can be engineered to exhibit interesting new properties, some based on quantum mechanical effects. Our research focuses on developing nanofabrication technology at the few-nanometer length-scale. We use these technologies to push the envelope of what is possible with photonic and electrical devices, focusing in particular on superconductive and free-electron devices. Our research combines electrical engineering, physics, and materials science and helps extend the limits of nanoscale engineering.

LATEST EVENTS IN OUR GROUP

4.1.2021
Owen Medeiros awarded NDSEG fellowship
Congratulations to Owen Medeiros on receiving the National Defense Science and Engineering Graduate Fellowship. This prestigious and competitive award will support his work for three years.
4.1.2021
Emma Batson and Owen Medeiros awarded NSF fellowship
Congratulations to Emma Batson and Owen Medeiros on receiving the National Science Foundation Graduate Research Fellowship. This prestigious and competitive award will support their work for three years. a
2.26.2021
New Publication “Impact of DC bias on weak optical-field-driven electron emission in nano-vacuum-gap detectors”
In this work, we investigate multiphoton and optical field tunneling emission from metallic surfaces with nanoscale vacuum gaps. Using time-dependent Schrödinger equation (TDSE) simulations, we find that the properties of... Read more >>
2.25.2021
New Publication “Compact and Tunable Forward Coupler Based on High-Impedance Superconducting Nanowires”
Developing compact, low-dissipation, cryogenic-compatible microwave electronics is essential for scaling up low-temperature quantum computing systems. In this paper, we demonstrate an ultracompact microwave directional forward coupler based on high-impedance slow-wave... Read more >>
2.2.2021
New Publication “Superconducting MoN thin films prepared by DC reactive magnetron sputtering for nanowire single-photon detectors”
We present a comprehensive study of molybdenum nitride (MoN) thin film deposition using direct current reactive magnetron sputtering. We have investigated the effect of various deposition conditions on the superconducting... Read more >>

The nanocryotron: A superconducting-nanowire three-terminal electrothermal device