A High Intensity Attosecond Light Source in Compact Geometry at ELI ALPS User Facility
Abstract
High-order harmonic generation (HHG) has become a standard technique for producing attosecond XUV pulses in the laboratory, yet the high flux necessary for nonlinear XUV photoionization remains accessible to only a few research groups. Here, we introduce the SYLOS Compact high-harmonic beamline at ELI ALPS, specifically designed to provide the flux required for non-linear optics in the XUV. We present a detailed characterization of the beam line demonstrating its capability to generate and utilize both intense attosecond pulse trains and isolated attosecond pulses. We further showcase the two-XUV-photon double ionization of neon (Ne) and argon (Ar), achieved in a user campaign. The results underscore the beamline's capability to support cutting-edge attosecond experiments and investigations of ultrafast electron dynamics on the attosecond scale.
Cite
@article{arxiv.2601.09608,
title = {A High Intensity Attosecond Light Source in Compact Geometry at ELI ALPS User Facility},
author = {Arjun Nayak and Mathieu Dumergue and Sourin Mukhopadhyay and Debobrata Rajak and Naveed Ahmed and János Csontos and Szabolcs Tóth and Prabhash Prasannan Geetha and Ioannis Orfano and Emmanouil Skantzakis and Paraskevas Tzallas and Dimitris Charalambidis and Katalin Varjú and Subhendu Kahaly and Zsolt Diveki},
journal= {arXiv preprint arXiv:2601.09608},
year = {2026}
}
Comments
20 pages, 7 figures