Myles Silfies has successfully defended his dissertation and completed his Ph. D. Many thanks to committee members Cyrus Dreyer, Chris Johnson, and A. J. Fleisher for serving on Myles’ committee. Also thanks to Tom Weinacht (pictured at left) for helping liberate the champagne.
Myles will be working on putting frequency combs in space for Space Dynamics Laboratory in Albuquerque, NM.
Allison lab postdoc Alice Kunin will start as an assistant professor at Princeton in Jan. 2024 where she will continue to develop advanced photoelectron spectroscopy techniques. Princeton has made a news post with more details.
Our work resolving valley polarization dynamics in monolayer WS2 is now featured as a DOE office of Science Highlight.
We have posted a new paper regarding the ultrafast dynamics salicylideneanaline, combining CE-TAS measurements with ab initio theory from the Levine group. The paper can be found here: https://arxiv.org/abs/2306.05645
Sergii Chernov is leaving us soon to start a new position at PETRA III. It was great to get the whole group together, with both new students and seasoned veterans, for an evening out.
In collaboration with the Liu group and the Laser Teaching Center at Stony Brook University, we will begin an exciting new five-year project to develop high-power frequency combs covering a wide swath of the electromagnetic spectrum, from the THz to the soft x-ray. The project is funded by the the Major Research Instrumentation (MRI) program of the National Science Foundation. The official announcement from NSF can be found here.
Using the multi-comb ideas presented in our previous paper on cavity-enhanced 2DIR spectroscopy, and major recent advances in mid-IR and long-wave IR frequency combs, high-resolution 2DIR spectroscopy of gasses is poised to become a powerful method for multi-species trace gas analysis. In two articles posted today, we present a comprehensive theoretical treatment of rotationally-resolved 2DIR (RR2DIR) spectroscopy and several new polarization conditions that can be used to bring clarity to RR2DIR spectra.
We have now posted a paper regarding our results from time-resolved ARPES studies in monolayer tungsten disulfide:
https://arxiv.org/abs/2203.02419
The momentum-space images recorded via time-of-flight momentum microscopy, like the one shown at left, enable detailed examination of the momentum and energy dependence of coupling between exciton states across the Brillouin zone.
Graduate student Jin Bakalis won the prize for best poster at Chemistry Research Day with her poster titled: “Ultrafast Dynamics in Graphite/graphene probed with time-resolved momentum microscopy.” Here is a photo of Jin receiving the award from Dept. Chair Peter Tonge.
It has been a long brutal year, but things are starting to get a little bit more normal. We were actually all in the same place together today for the first time in over a year to take the group photo. Thanks to Eisen Gross for taking the picture.
