We are excited to share with you our Winter 2025 group newsletter.   

First of all, we are happy to share that Karl has been appointed as Faculty Head of EE at MIT! Please join us in congratulating him on his new role. 

We are also excited to welcome Ben Mazur as a new PhD student in the group, and Gian Luca Dolso as a new postdoctoral fellow.  Ben and Gian will be working on petahertz electronics and related experiments.   In addition to Ben and Gian, there are also a number of new UROP students joining the team this term.  

During the IAP period much of the group attended the annual MARC and QuARC conferences, and we were excited to learn that Francesca Incalza received the Best Poster award at QuARC. 

As usual, we provide a more complete list of comings and goings, awards, publications, and presentations from the group below, in addition to a more recent group photo from our annual retreat at MIT Endicott house in October. 

Best regards,
Karl and Donnie

Comings and Goings

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

• Ben Mazur, RA from EECS
• Gian Luca Dolso, Postdoc
• Pavan Yeddanapudi, UROP
• Andi Qu, UROP
• Eric Zhan, UROP
• James Shi, UROP

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

• Simon Opsahl, UROP
• Jocelyn Zhang, UROP
• Ellie Bultena, UROP
• Hanson Nguyen, MSRP

Awards

Francesca Incalaza received the “Best Poster Award” at QuARC!

Publications (9/31/24 – 02/01/25)

C. Heide, P. D. Keathley, and M. F. Kling, “Petahertz electronics,” Nat Rev Phys, vol. 6, no. 11, pp. 648–662, Nov. 2024, doi: 10.1038/s42254-024-00764-7

P.D. Keathley and F. Ritzkowsky, “Comment on ‘Synthesis and Direct Sampling of Single-Cycle Light Transients by Electron Tunneling in a Nanodevice,’” ACS Photonics, Jan. 2025, doi: 10.1021/acsphotonics.4c01800.

F. Ritzkowsky et al., “On-chip petahertz electronics for single-shot phase detection,” Nat Commun, vol. 15, no. 1, pp. 1–8, Nov. 2024, doi: 10.1038/s41467-024-53788-z.

Conferences & Proceedings (5/1/24 – 09/30/24)

K. Berggren, “Superconducting Microstrip-Based Electronics: Revisiting the Cryotron,” University of Naples, Oct. 30, 2024.

K. Berggren, “Superconducting Single-Photon Detectors (Mostly Nanowires),” presented at the Future Prospects of Intensity Interferometry, Waterloo, Canada, Oct. 31, 2024.

K. Berggren, “Superconducting Detectors and Electronics for Quantum Sensing and Applications in Space,” Goddard Lab, Washington D.C., Dec. 11, 2024.

Preprints (5/1/24 – 09/30/24)

A. Simon et al., “Ab initio modeling of single-photon detection in superconducting nanowires,” Jan. 23, 2025, arXiv: arXiv:2501.13791. doi: 10.48550/arXiv.2501.13791.

J. W. Simonaitis, J. A. Alongi, B. Slayton, W. P. Putnam, K. K. Berggren, and P. D. Keathley, “Electron Energy Loss Spectroscopy of 2D Materials in a Scanning Electron Microscope,” Oct. 11, 2024, arXiv: arXiv:2410.09291. doi: 10.48550/arXiv.2410.09291.