Quantum Nanostructures and
Nanofabrication Group

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

QNN Quarterly Newsletter

Dear QNN Group Members, Alums and Affiliates,

Welcome to another issue of our quarterly(ish) newsletter. The group is feeling stable these days… new programs are starting and old ones are ending at about the same rate.

The high points of the past quarter were definitely Navid and Marco getting their PhD’s, and Owen, Andrew, and Emma getting their Master’s thesis completed. Congratulations all! We also have welcomed some new group members and are excited to watch them progress!

We hope you are all well, and feel free to drop a line to let us know your news!

Best regards,

Karl and Donnie

Comings and Goings

The last few months we’ve welcomed the following new group members:

  • Lu-Ting Chou, Visiting Student
  • Shruti Nirantar, Visiting Scholar
  • John Gumm, CQN Visiting Student
  • Daniel Watkins, CQN Visiting Student

The following members have now left and become alumni group members:

  • Navid Abedzadeh, Graduated! Joining HyperLight, in Cambridge MA.
  • Marco Turchetti, Graduated! Going to IBM in New York
  • Andrew Sorenson, Graduated! Off to Navy Pilot School
  • Eyosias Gebremeskel, UROP
  • Uyen Nguyen, UROP – Graduated!
  • Esteban Vizcaino, UROP
  • Joseph Feld, UROP


E. Batson, “Reduced Indium Tin Oxide as a Transparent Superconductor,” M.S. Thesis, Massachusetts Institute of Technology, 2022.

O. Medeiros, “Investigation of Thin Film Supercurrent and Photodetection in Wide Niobium Nitride Wires,” M.S. Thesis, Massachusetts Institute of Technology, 2022.

A. Sorenson, “Superconducting Electronics for Breakthrough Startshot Communications,” Master of Engineering in Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 2022.

N. Abedzadeh, “Techniques for Reducing Beam-Induced Damage in Electron Microscopy,” Doctoral Thesis, Massachusetts Institute of Technology, 2022.

M. Turchetti, “Nano Vacuum Channel Devices for Electronics and Ultrafast Nanophotonics,” Doctoral Thesis, Massachusetts Institute of Technology, 2022.


Honorable mention in the PAS Division of Laser Science student Poster Contest at CLEO 2022: Dip Joti Paul, “Infrared Refractive Index Measurement of Niobium Nitride Thin-Film via FTIR”.

Alessandro Buzzi and Matteo Castellani won the EIPBN 2022 Award for “Best Electron Micrograph”. The image A Maze in Grace is at the bottom of this newsletter!

Alessandro Buzzi won an award for “Best Presentation” at WOLTE 15 in June.

John Simonaitis won best poster for “Coherent interactions between electrons and photons in a 10 KeV scanning electron microscope” at the Quantum Electron Optics Conference sponsored by the Wilhelm and Else Heraeus Foundation in Nahsholim, Israel.

Publications (4/1/22 – 7/1/22)

[1] M. Prentiss, A. Chu, and K. K. Berggren, “Finding the infectious dose for COVID-19 by applying an airborne-transmission model to superspreader events,” PLOS ONE, vol. 17, no. 6, p. e0265816, Jun. 2022, doi: 10.1371/journal.pone.0265816.

[2] L. Shao et al., “Electrical control of surface acoustic waves,” Nat Electron, pp. 1–8, Jun. 2022, doi: 10.1038/s41928-022-00773-3.

[3] M. Turchetti et al., “Electron Emission Regimes of Planar Nano Vacuum Emitters,” IEEE Transactions on Electron Devices, vol. 69, no. 7, pp. 3953–3959, Jul. 2022, doi: 10.1109/TED.2022.3175706.

Talks (4/1/22 – 7/1/22)

[1] K. K. Berggren, “Superconducting-nanowire single-photon detectors,” presented at the SPIE Defense + Commercial Sensing, Virtual, Apr. 06, 2022.

[2] T. X. Zhou, “Quantum Applications Build on Creative Nanofabrication,” presented at the 2022 NNCI Etch Symposium, University of Pennsylvania, Apr. 23, 2022. [Online]. Available:

[3] P. D. Keathley, “Seeing the Light Wave: On-chip Sampling of Electric Fields with Attosecond Resolution,” presented at the Conference on Lasers and Electro-Optics (CLEO), SF3E.5, San Jose, California, May 12, 2022.

[4] E. Batson, “Fabrication of Microwires on Reduced ITO Nanoparticles,” presented at the EIPBN 2022, New Orleans, Jun. 01, 2022.

[5] A. Bechhofer, “Stochastic methods for geometrical optimization of nano vacuum electronics,” presented at the EIPBN 2022, New Orleans, LA, Jun. 02, 2022.

[6] M. R. Bionta, “Chip-based attosecond time-domain spectroscopy,” presented at the 53rd Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics, Virtual, Jun. 01, 2022.

[7] M. Castellani, “Design of a Superconducting Nanowire-Based Synapse for Energy-Efficient Spiking Neural Networks,” presented at the EIPBN 2022, New Orleans, LA, Jun. 02, 2022.

[8] M. Castellani, “A Superconducting Nanowire Platform for Artificial Spiking Neural Networks,” presented at the WOLTE 15, Matera, Italy, Jun. 08, 2022.