Resolving Vibrations in a Polyatomic Molecule with Femtometer Precision
Chemical Physics
2022-07-05 v1
Abstract
We measure molecular vibrations with femtometer precision using time-resolved x-ray absorption spectroscopy. For a demonstration, a Raman process excites the A mode in gas-phase SF molecules with an amplitude of fm, which is probed by a time-delayed soft x-ray pulse at the sulfur -edge. Mapping the extremely small measured energy shifts to internuclear distances requires an understanding of the electronic contributions provided by a many-body ab initio simulation. Our study establishes core-level spectroscopy as a precision tool for time-dependent molecular-structure metrology.
Cite
@article{arxiv.2207.01290,
title = {Resolving Vibrations in a Polyatomic Molecule with Femtometer Precision},
author = {Patrick Rupprecht and Lennart Aufleger and Simon Heinze and Alexander Magunia and Thomas Ding and Marc Rebholz and Stefano Amberg and Nikola Mollov and Felix Henrich and Maurits W. Haverkort and Christian Ott and Thomas Pfeifer},
journal= {arXiv preprint arXiv:2207.01290},
year = {2022}
}