Quantum coherence in photo-ionisation with tailored XUV pulses

Stefanos Carlström, Johan Mauritsson, Kenneth J. Schafer, Anne L'Huillier, Mathieu Gisselbrecht

Research output: Contribution to journalArticlepeer-review

8 Citations (SciVal)

Abstract

Ionisation with ultrashort pulses in the extreme ultraviolet (XUV) regime can be used to prepare an ion in a superposition of spin-orbit substates. In this work, we study the coherence properties of such a superposition, created by ionising xenon atoms using two phase-locked XUV pulses at different frequencies. In general, if the duration of the driving pulse exceeds the quantum beat period, dephasing will occur. If however, the frequency difference of the two pulses matches the spin-orbit splitting, the coherence can be efficiently increased and dephasing does not occur.

Original languageEnglish
Article number015201
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume51
Issue number1
DOIs
Publication statusPublished - 2018 Jan 14

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

Keywords

  • atomic double slit
  • coherent ionization
  • ultra-fast entanglement

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