Attosecond Transient Absorption Spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy
Abstract
The recent demonstration of isolated attosecond pulses from an X-ray free-electron laser (XFEL) opens the possibility for probing ultrafast electron dynamics at X-ray wavelengths. An established experimental method for probing ultrafast dynamics is X-ray transient absorption spectroscopy, where the X-ray absorption spectrum is measured by scanning the central photon energy and recording the resultant photoproducts. The spectral bandwidth inherent to attosecond pulses is wide compared to the resonant features typically probed, which generally precludes the application of this technique in the attosecond regime. In this paper we propose and demonstrate a new technique to conduct transient absorption spectroscopy with broad bandwidth attosecond pulses with the aid of ghost imaging, recovering sub-bandwidth resolution in photoproduct-based absorption measurements.
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Cite
@article{arxiv.1909.07441,
title = {Attosecond Transient Absorption Spooktroscopy: a ghost imaging approach to ultrafast absorption spectroscopy},
author = {Taran Driver and Siqi Li and Elio G. Champenois and Joseph Duris and Daniel Ratner and TJ Lane and Philipp Rosenberger and Andre Al-Haddad and Vitali Averbukh and Toby Barnard and Nora Berrah and Christoph Bostedt and Philip H. Bucksbaum and Ryan Coffee and Louis F. DiMauro and Li Fang and Douglas Garratt and Averell Gatton and Zhaoheng Guo and Gregor Hartmann and Daniel Haxton and Wolfram Helml and Zhirong Huang and Aaron LaForge and Andrei Kamalov and Matthias F. Kling and Jonas Knurr and Ming-Fu Lin and Alberto A. Lutman and James P. MacArthur and Jon P. Marangos and Megan Nantel and Adi Natan and Razib Obaid and Niranjan H. Shivaram and Aviad Schori and Peter Walter and Anna Wang and Thomas J. A. Wolf and Agostino Marinelli and James P. Cryan},
journal= {arXiv preprint arXiv:1909.07441},
year = {2020}
}
Comments
13 pages, 3 figures