Table-top Nonlinear Extreme Ultraviolet Spectroscopy
Abstract
The lack of available table-top extreme ultraviolet (XUV) sources with high enough fluxes and coherence properties have limited the availability of nonlinear XUV and x-ray spectroscopies to free electron lasers (FEL). Here, we demonstrate second harmonic generation (SHG) on a table-top XUV source for the first time by observing SHG at the Ti M2,3-edge with a high harmonic seeded soft x-ray laser (HHG-SXRL) [1,2]. Further, this experiment represents the first SHG experiment in the XUV. First-principles electronic structure calculations are used to confirm the surface specificity and resonant enhancement of the SHG signal. The realization of XUV-SHG on a table-top source with femtosecond temporal resolution opens up tremendous opportunities for the study of element-specific dynamics in multi-component systems where surface, interfacial, and bulk-phase asymmetries play a driving role in smaller-scale labs as opposed to FELs.
Cite
@article{arxiv.2009.05151,
title = {Table-top Nonlinear Extreme Ultraviolet Spectroscopy},
author = {T. Helk and E. Berger and S. Jamnuch and L. Hoffmann and A. Kabacinski and J. Gautier and F. Tissandier and J. P. Goddet and H. -T. Chang and J. Oh and C. D. Pemmaraju and T. A. Pascal and S. Sebban and C. Spielmann and M. Zuerch},
journal= {arXiv preprint arXiv:2009.05151},
year = {2020}
}
Comments
16 pages, 3 main text figures, 1 supplementary table, 6 supplementary figures