activity
20212025
most citedTheoretical analysis of the role of complex transition dipole phase in XUV transient-absorption probing of charge migration

18 citations · 21 across the 8 of their papers we have counts for

collaborators

8 papers

physics.optics20251 cited

All-optical logic gates for extreme ultraviolet switching via attosecond four-wave mixing

Patrick Rupprecht, Daniel M. Neumark, Stephen R. Leone

All-optical logic-gate-based switching is a prerequisite for photonic computing. This article introduces a logic-gate protocol for noncollinear four-wave mixing (FWM) of one attose…

physics.optics2025

Versatile, open-source program for simulating high-harmonic generation

Christian A. Schröder, Reinhard Kienberger, Stephen R. Leone

Light sources based on high-harmonic generation (HHG) underpin ultrafast spectroscopy experiments across a large range of photon energies, spanning from the extreme-ultraviolet to…

physics.chem-ph2025

Tracing long-lived atomic coherences generated via molecular conical intersections

Patrick Rupprecht, Francesco Montorsi, Lei Xu +7

Accessing coherences is key to fully understand and control ultrafast dynamics of complex quantum systems like molecules. Most photochemical processes are mediated by conical inter…

physics.atom-ph2024

Extracting doubly-excited state lifetimes in helium directly in the time domain with attosecond noncollinear four-wave-mixing spectroscopy

Patrick Rupprecht, Nicolette G. Puskar, Daniel M. Neumark +1

The helium atom, with one nucleus and two electrons, is a prototypical system to study quantum many-body dynamics. Doubly-excited states, or quantum states in which both electrons…

physics.optics20241 cited

Attosecond transient grating spectroscopy with near-infrared grating pulses and an extreme ultraviolet diffracted probe

Rafael Quintero-Bermudez, Lorenz Drescher, Vincent Eggers +2

Transient grating spectroscopy has become a mainstay among metal and semiconductor characterization techniques. Here we extend the technique towards the shortest achievable timesca…

cond-mat.mtrl-sci2024

Initial electron thermalization in metals measured by attosecond transient absorption spectroscopy

Bethany R. de Roulet, Lorenz Drescher, Shunsuke A. Sato +1

Understanding initial electron thermalization has relevance to both fundamental scientific knowledge and application to the construction of novel devices. In this study, attosecond…