High-harmonic generation enhanced by laser-induced electron recollision

Abstract

We theoretically investigate correlated electron dynamics in high-harmonic generation (HHG), using all-electron \emph{ab initio} simulations for three-dimensional real alkali-metal atoms. The resulting harmonic spectra exhibit a plateau extended beyond the usual cutoff and a prominent resonance peak above the plateau. These remarkable features arise from the cation response dramatically enhanced by laser-induced electron recollision, which is a key process of attosecond science. This demonstrates that high-harmonic spectroscopy provides new possibilities to explore dynamical electron correlation in strong laser pulses.

arXiv comment6 pages, 4 figures

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Cited by in corpus (6)

• Time-Dependent Multiconfiguration Self-Consistent-Field Study on Resonantly Enhanced High-Harmonic Generation from Transition Metal Elements
• Time-dependent optimized coupled-cluster method for multielectron dynamics III: A second-order many-body perturbation approximation
• Double ionization of a three-electron atom: Spin correlation effects
• Strong-field ionization of atoms with $p^3$ valence shell: Two versus three active electrons
• Time-dependent Hole States in Multiconfigurational Time-Dependent Hartree-Fock Approaches: A Time-Domain Generalization of Extended Koopmans' Theorem
• Controlling resonant enhancement in higher-order harmonic generation