Attosecond pump–attosecond probe spectroscopy of Auger decay
Open Access
- 17 May 2021
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 23 (21), 12376-12386
- https://doi.org/10.1039/d1cp00623a
Abstract
Attosecond pump–attosecond probe spectroscopy is becoming possible due the development of sub-femtosecond free electron laser (FEL) pulses as well as intense high-order harmonic generation-based attosecond sources. Here we investigate theoretically whether these developments can provide access to direct time-resolved measurement of Auger decay through detection of the total yield of an ionic decay product, in analogy to the photodissociation product detection in femtochemistry. We show that the ion yield based measurement is generally possible and in the case of the inner-valence hole decay can be background-free. Extensive first principles calculations are used to optimise the probe photon energies for a variety of prototypical systems.Funding Information
- Engineering and Physical Sciences Research Council (EP/I08680/1)
- Grantová Agentura České Republiky (17-10866S)
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