activity
20232026
most citedMeasuring the quantum state of photoelectrons

35 citations · 35 across the 12 of their papers we have counts for

collaborators

12 papers

physics.optics2026

Near single-cycle pulse generation using a cascaded all-bulk multi-pass cell compression system

Saga Westerberg, Gaspard Beaufort, Sara Rushe Palacios +5

We experimentally demonstrate the generation of sub-two-cycle optical pulses using a cascaded post-compression scheme based on two bulk multi-pass cells. Starting from 220 fs, 100…

physics.optics2026

Enhanced dynamic range spatio-spectral metrology of few-cycle laser pulses

Cristian Alexe, Aaron Liberman, Saga Westerberg +13

Accurate spatio-temporal and spatio-spectral metrology is critical to the characterization and use of ultra-short, high-power lasers. The emergence of few cycle pulses, with bandwi…

physics.optics2025

Compact, intense attosecond sources driven by hollow Gaussian beams

Rodrigo Martín-Hernández, Melvin Redon, Ann-Kathrin Raab +9

High-order harmonic generation (HHG) enables the up-conversion of intense infrared or visible femtosecond laser pulses into extreme-ultraviolet attosecond pulses. However, the high…

physics.atom-ph2025

Subcycle phase matching effects in short attosecond pulse trains

N. Ouahioune, R. Martín-Hernández, D. Hoff +8

Attosecond pulses produced by High-order Harmonic Generation (HHG) in gases driven by intense laser fields have become a cornerstone technique for probing ultrafast electronic moti…

physics.optics2025

Influence of the laser pulse duration in high-order harmonic generation

Saga Westerberg, Melvin Redon, Ann-Kathrin Raab +10

High-order harmonic generation (HHG) in gases has been studied for almost 40 years in many different conditions, varying the laser wavelength, intensity, focusing geometry, target…

physics.optics2024

Energy scaling in a compact bulk multi-pass cell enabled by Laguerre-Gaussian single-vortex beams

Victor Koltalo, Saga Westerberg, Melvin Redon +5

We report pulse energy scaling enabled by the use of Laguerre-Gaussian single-vortex () beams for spectral broadening in a sub-40 cm long Herriott-type bulk multi-…

physics.atom-ph2024

XUV yield optimization of two-color high-order harmonic generation in gases

Ann-Kathrin Raab, Melvin Redon, Sylvianne Roscam Abbing +7

We perform an experimental two-color high-order harmonic generation study in argon with the fundamental of an ytterbium ultrashort pulse laser and its second harmonic. The intensit…

physics.optics2024

Multiscale carrier-envelope phase characterization of 2-μm pulses delivered by a 200-kHz optical parametric amplifier

Katrin Meier, Arvid Klösgen, Kerstin Harland +7

Light fields with a central wavelength of 2 um are very well suited for strong-field-driven charge carrier control: Their photon energy lies far below the band gap of many material…

physics.optics2024

Highly versatile, two-color setup for high-order harmonic generation using spatial light modulators

Ann-Kathrin Raab, Marvin Schmoll, Emma R. Simpson +7

We present a novel, interferometric, two-color, high-order harmonic generation setup, based on a turn-key Ytterbium-doped femtosecond laser source and its second harmonic. Each int…

physics.optics2023

Time-resolved photoemission electron microscopy on a ZnO surface using an extreme ultraviolet attosecond pulse pair

Jan Vogelsang, Lukas Wittenbecher, Sara Mikaelsson +6

Electrons photoemitted by extreme ultraviolet attosecond pulses derive spatially from the first few atomic surface layers and energetically from the valence band and highest atomic…

quant-ph2023★ 35 cited

Measuring the quantum state of photoelectrons

Hugo Laurell, Sizuo Luo, Robin Weissenbilder +17

A photoelectron, emitted due to the absorption of light quanta as described by the photoelectric effect, is often characterized experimentally by a classical quantity, its momentum…

physics.optics2023

Measurement of Ultrashort Laser Pulses With a Time-Dependent Polarization State Using the D-Scan Technique

Daniel Diaz Rivas, Ann-Kathrin Raab, Chen Guo +4

The dispersion scan (d-scan) technique is extended to measurement of the timedependent polarization state of ultrashort laser pulses. In the simplest implementation for linearly po…