HIGH-RESOLUTION X-RAY STIMULATED RAMAN SPECTROSCOPY USING STOCHASTIC PULSES

Li, Kai

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https://hdl.handle.net/2142/122587 Copy

Description

Title

HIGH-RESOLUTION X-RAY STIMULATED RAMAN SPECTROSCOPY USING STOCHASTIC PULSES

Author(s)

Li, Kai

Contributor(s)

• Young, Linda
• Gaarde, Mette
• Usenko, Sergey
• Baumann, Thomas
• Fanis, Alberto De
• Mazza, Tommaso
• Meyer, Michael
• Simon, Marc
• Rubensson, Jan-Erik
• Agåker, Marcus
• Rebholz, Marc
• Magunia, Alexander
• Pfeifer, Thomas
• Ott, Christian
• Doumy, Gil

Issue Date

2023-06-19

Keyword(s)

Mini-symposium: Spectroscopy at Large-scale Facilities

Abstract

X-ray free-electron lasers (XFELs) generate high-intensity x-ray pulses which enable x-ray nonlinear spectro-scopies. The extension of nonlinear spectroscopies to the x-ray domain promises the observation of electronic dynamics on their natural timescales with atomic spatial resolution. Stimulated x-ray Raman spectroscopy is an especially powerful tool, which in a propagation geometry combines large signal enhancement through stimulated emission with ultrahigh energy resolution that overcomes core-hole lifetime broadening. We present high-resolution stimulated Raman spectroscopy realized using stochastic XFEL pulses and correlation techniques. A covariance map between the transmitted SASE pulse and the stimulated Raman scattering produces a high-resolution x-ray Raman spectrum. This promising tool could be applied to study ultrafast electronic and molecular dynamics such as charge transfer in complex systems.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Handle URL

https://hdl.handle.net/2142/122587

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