Quantum coherent control of the photoelectron angular distribution in bichromatic-field ionization of atomic neonстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 7 марта 2018 г.
Аннотация:We investigate the coherent control of the photoelectron 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 Schrödinger 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 nonresonant two-photon process and its potential constructive or destructive role for quantum
coherent control is investigated.