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arXiv · 1712.00842

Quantum coherent control of the photo\-electron angular distribution in bichromatic ionization of atomic neon

E. V. Gryzlova·A. N. Grum-Grzhimailo·E. I. Staroselskaya·N. Douguet·K. Bartschat
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Abstract

We investigate the coherent control of the photo\-electron angular distribution in bichromatic atomic ionization. Neon is selected as target since it is one of the most popular systems in current gas-phase experiments with free-electron lasers (FELSs). In particular, we tackle practical questions, such as the role of the fine-structure splitting, the pulse length, and the intensity. Time-dependent and stationary perturbation theory are employed, and we also solve the time-dependent Schr\"odinger equation in a single-active electron model. We consider neon ionized by a FEL pulse whose fundamental frequency is in resonance with either $2p-3s$ or $2p-4s$ excitation. The contribution of the non\-resonant two-photon process and its potential constructive or destructive role for quantum coherent control is investigated.

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E. V. Gryzlova, A. N. Grum-Grzhimailo, E. I. Staroselskaya, N. Douguet, K. Bartschat. 2017-12-03. Quantum coherent control of the photo\-electron angular distribution in bichromatic ionization of atomic neon. https://doi.org/10.1103/physreva.97.013420

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