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arXiv · 2312.06360

Resonant high-order harmonic generation by indium ions

Alexander I. Magunov·Vasily V. Strelkov
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Abstract

High-order harmonic generation in multiphoton ionization regime is studied theoretically to examine the resonant effects of the generating particle. We solve the time-dependent Schr\"odinger equation for In+ in the laser field by expanding the solution in terms of unperturbed eigenstates obtained in the Hartree-Fock approximation. The intensity enhancement of the high harmonic is demonstrated under 7-photon resonance with the energy of the transition from the ground state to the 4d^9 5p ^1P_1 autoionizing state. Attosecond pulse generation using harmonics of the fifth and higher orders is studied. We find a train of almost spectral limited pulses with duration of 190 as.

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Alexander I. Magunov, Vasily V. Strelkov. 2023-12-11. Resonant high-order harmonic generation by indium ions. https://arxiv.org/abs/2312.06360

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