Aarhus University Seal

Strong-field ionization and AC-Stark shifted Rydberg states in OCS

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review


We present theoretical results for intensity-dependent above-threshold ionization (ATI) spectra from oriented OCS molecules probed by intense femtosecond laser pulses with wavelengths of 800 and 400 nm. The calculations were performed using the time-dependent Schrödinger equation within the single-active-electron approximation and including multielectron polarization effects. The results capture some of the experimental findings (Yu et al 2017 J. Phys. B: At. Mol. Opt. Phys. 50 235602), in particular when considering the sensitivity of the ATI spectra on the molecular orientation. We identify characteristic features in the ATI spectra which correspond to resonant multiphoton ionization via highly-excited Rydberg states are captured by the theory.

Original languageEnglish
Article number105401
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Publication statusPublished - Apr 2023

    Research areas

  • above-threshold ionization, AC-Stark shift, Rydberg states, single-active-electron, strong-field ionization

See relations at Aarhus University Citationformats

ID: 317335338