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arXiv · 2212.04664

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

Mahmoud Abu-samha·Lars Bojer Madsen
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Abstract

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 Schroodinger equation within the single-active-electron approximation and including multielectron polarization effects. The results are in qualitative agreement with experimental data [Yu et al., J. Phys. B: At. Mol. Opt. Phys. 50, 235602 (2017)]. In particular, characteristic features in the ATI spectra which correspond to resonant multiphoton ionization via highly-excited Rydberg states are captured by the theory.

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Mahmoud Abu-samha, Lars Bojer Madsen. 2022-12-09. Strong-field ionization and AC-Stark shifted Rydberg states in OCS. https://doi.org/10.1088/1361-6455%2Facc8a8

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