Presentation
11 June 2024 Theoretical description of attosecond x-ray imaging and spectroscopy of electron dynamics
Daria Gorelova
Author Affiliations +
Abstract
We explore how attosecond x-ray and extreme ultraviolet pulses can be employed for imaging electron dynamics in real time. In the first part of my talk, I will review our theoretical developments to describe pump-probe experiments. We describe ultrafast imaging by means of photoelectron momentum microscopy with extreme ultraviolet pulses. I will talk about attosecond momentum-resolved resonant x-ray scattering that is another imaging technique to follow electron dynamics in materials. We develop an ab initio scheme based on the Bethe-Salpeter equation and the full-potential linearized augmented-plane-wave method to treat optical-pump -- resonant x-ray probe-techniques and will demonstrate our results for x-ray absorption spectroscopy of optically excited excitons in 4H-SiC. In the second part of my talk, I will present our ab initio description of experiments involving wave mixing of optical and x-ray pulses, namely, attosecond x-ray diffraction and absorption spectroscopy from materials during the time they are optically driven by light.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daria Gorelova "Theoretical description of attosecond x-ray imaging and spectroscopy of electron dynamics", Proc. SPIE PC12992, Advances in Ultrafast Condensed Phase Physics IV, PC1299201 (11 June 2024); https://doi.org/10.1117/12.3025259
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KEYWORDS
X-ray imaging

X-ray optics

X-rays

Imaging spectroscopy

Spectroscopy

Absorption spectroscopy

Extreme ultraviolet

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