English

Ionisation dynamics through a Fano resonance: Time domain interpretation of spectral amplitudes

Atomic Physics 2018-11-14 v2

Abstract

We investigate a conjecture used in recent experiments to reconstruct the complete dynamics of Fano autoionisation processes out of measured spectral amplitudes [Gruson et al, Science 354 734 (2016); Beaulieu el al, Science 358 1288 (2017); Busto et al, J. Phys. B: At. Mol. Opt. Phys. 51 044002 (2018)]. The validity of the conjecture is established analytically within the formalism of Fano, and tested numerically on model atoms displaying adjustable autoionising states. A general condition for which the conjecture is valid, beyond the Fano case, is then derived.

Keywords

Cite

@article{arxiv.1809.08413,
  title  = {Ionisation dynamics through a Fano resonance: Time domain interpretation of spectral amplitudes},
  author = {Antoine Desrier and Alfred Maquet and Richard Taïeb and Jérémie Caillat},
  journal= {arXiv preprint arXiv:1809.08413},
  year   = {2018}
}