Author Archives: tka3

With the Levine group, we have posted a new paper about simulating transient absorption spectroscopy from first principles.

We have posted a new paper regarding imaging pseudospin dynamics in graphene. Working at the low excitation fluences enabled by our unique tr-ARPES instrument, we are able to vary the relative importance of electron-electron and electron-phonon scattering on the dynamics … Continue reading →

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 … Continue reading →

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.

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 … Continue reading →

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 … Continue reading →

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 … Continue reading →