Publications

Exploring the Influence of Approximations for Simulating Valence Excited X‑ray Spectra

Exploring the Influence of Approximations for Simulating Valence Excited X‑ray Spectra

First-principles simulations of excited-state X-ray spectra are becoming increasingly important to interpret the wealth of electronic and geometric information contained within femtosecond X-ray absorption spectra recorded at X-ray Free Electron Lasers (X-FELs). However, because the transition dipole matrix elements must be calculated between two excited states (i.e., the valence excited state and the final core excited state arising from the initial valence excited state) of very different energies, this can be challenging and time-consuming to compute…

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XFEL SASE pulses can enhance time-dependent observables

XFEL SASE pulses can enhance time-dependent observables

  • Eirik M. Liane, Mats Simmermacher, Peter M. Weber and Adam Kirrander
  • Publication

X-ray free electron lasers (XFELs) have emerged as powerful sources of short and intense x-ray pulses. We propose a simple and robust procedure which takes advantage of the inherent stochasticity of self-amplified stimulated emission (SASE) pulses to enhance the time-resolution and signal strength of the recorded data…

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List of Publications

The links below take you to the COSMOS page for the paper. DOIs on these pages are linked to the appropriate journal entry page. The bibtex for the paper can be found at the bottom of the page.