Characterizing Particle-Like Charge Migration Dynamics with High-Harmonic Sideband Spectroscopy
Atomic Physics
2022-07-22 v2
Abstract
We introduce high-harmonic sideband spectroscopy (HHSS) and show that it can be a robust probe of attosecond charge migration (CM) in a halogenated carbon-chain molecule. We simulate both the CM and harmonic-generation (HHG) dynamics using ab initio time-dependent density-functional theory. We find that CM dynamics initiated along the molecular backbone induces sidebands in the HHG spectrum driven by a delayed laser pulse that is polarized perpendicular to the molecular axis. Monitoring the spectrum as either the HHG laser frequency or the relative delay is scanned allows for the extraction of detailed information about the time-domain characteristics of the CM process.
Cite
@article{arxiv.2202.00730,
title = {Characterizing Particle-Like Charge Migration Dynamics with High-Harmonic Sideband Spectroscopy},
author = {Kyle A. Hamer and Francois Mauger and Aderonke S. Folorunso and Kenneth Lopata and Robert R. Jones and Louis F. DiMauro and Kenneth J. Schafer and Mette B. Gaarde},
journal= {arXiv preprint arXiv:2202.00730},
year = {2022}
}
Comments
8 pages, 7 figures