activity
20192025
most citedTunable Isolated Attosecond X-ray Pulses with Gigawatt Peak Power from a Free-Electron Laser

482 citations · 696 across the 13 of their papers we have counts for

collaborators

13 papers

physics.atm-clus2025★ 10 cited

Relaxation dynamics in excited helium nanodroplets probed with high resolution, time-resolved photoelectron spectroscopy

A. C. LaForge, J. D. Asmussen, B. Bastian +18

Superfluid helium nanodroplets are often considered as transparent and chemically inert nanometer-sized cryo-matrices for high-resolution or time-resolved spectroscopy of embedded…

physics.atom-ph2024

Attosecond Delays in X-ray Molecular Ionization

Taran Driver, Miles Mountney, Jun Wang +34

The photoelectric effect is not truly instantaneous, but exhibits attosecond delays that can reveal complex molecular dynamics. Sub-femtosecond duration light pulses provide the re…

cond-mat.mes-hall2024

Tracking Surface Charge Dynamics on Single Nanoparticles

Ritika Dagar, Wenbin Zhang, Philipp Rosenberger +16

Surface charges play a fundamental role in physics and chemistry, particularly in shaping the catalytic properties of nanomaterials. Tracking nanoscale surface charge dynamics rema…

physics.chem-ph2022

Reaction Nanoscopy of Ion Emission from Sub-wavelength Propanediol Droplets

Philipp Rosenberger, Ritika Dagar, Wenbin Zhang +5

Droplets provide unique opportunities for the investigation of laser-induced surface chemistry. Chemical reactions on the surface of charged droplets are ubiquitous in nature and c…

physics.optics2022★ 1 cited

Spatio-temporal sampling of near-petahertz vortex fields

Johannes Blöchl, Johannes Schötz, Ancyline Maliakkal +8

Measuring the field of visible light with high spatial resolution has been challenging, as many established methods only detect a focus-averaged signal. Here, we introduce a near-f…

physics.optics2021

Onset of space-charge effects in strong-field photocurrents from nanometric needle tips

J. Schötz, L. Seiffert, A. Maliakkal +8

Strong-field photoemission from nanostructures and the associated temporally modulated currents play a key role in the development of ultrafast vacuum optoelectronics. Optical ligh…

physics.optics2021★ 12 cited

The emergence of macroscopic currents in photoconductive sampling of optical fields

Johannes Schötz, Ancyline Maliakkal, Johannes Blöchl +9

Photoconductive field sampling is a key methodology for advancing our understanding of light-matter interaction and ultrafast optoelectronic applications. For visible light the ban…

physics.chem-ph2021★ 97 cited

Attosecond Coherent Electron Motion in Auger-Meitner Decay

Siqi Li, Taran Driver, Philipp Rosenberger +38

In quantum systems, coherent superpositions of electronic states evolve on ultrafast timescales (few femtosecond to attosecond, 1 as = 0.001 fs = 10^{-18} s), leading to a time dep…

physics.optics2021★ 4 cited

Single-shot Dispersion Sampling for Optical Pulse Reconstruction

A. Korobenko, P. Rosenberger, J. Schötz +6

We present a novel approach to single-shot characterization of the spectral phase of broadband laser pulses. Our method is inexpensive, insensitive to alignment and combines the si…

physics.chem-ph2019★ 56 cited

Attosecond Transient Absorption Spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy

Taran Driver, Siqi Li, Elio G. Champenois +38

The recent demonstration of isolated attosecond pulses from an X-ray free-electron laser (XFEL) opens the possibility for probing ultrafast electron dynamics at X-ray wavelengths.…

physics.optics2019★ 26 cited

Single-shot carrier-envelope-phase measurement in ambient air

M. Kubullek, Z. Wang, K. von der Brelje +9

The ability to measure and control the carrier envelope phase (CEP) of few-cycle laser pulses is of paramount importance for both frequency metrology and attosecond science. Here,…

physics.atom-ph2019★ 8 cited

CEP-Controlled Molecular Dissociation by Ultrashort Chirped Laser Pulses

S. A. Karakaş, P. Rosenberger, M. F. Ciappina +2

We demonstrate and characterize that a carrier-envelope-phase (CEP)-controlled ultrashortchirped field is an efficient and robust mechanism to modify the dissociation dynamics of m…

physics.optics2019★ 482 cited

Tunable Isolated Attosecond X-ray Pulses with Gigawatt Peak Power from a Free-Electron Laser

Joseph Duris, Siqi Li, Taran Driver +31

The quantum mechanical motion of electrons in molecules and solids occurs on the sub-femtosecond timescale. Consequently, the study of ultrafast electronic phenomena requires the g…