Nonadiabatic three-dimensional model of high-order harmonic generation in the few-optical-cycle regime
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- 5 May 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 61 (6) , 063801
- https://doi.org/10.1103/physreva.61.063801
Abstract
A numerical model to calculate the high-order harmonics spectrum of a macroscopic gas target irradiated by a few-optical-cycle laser pulse is presented. The single-atom response, calculated within the nonadiabatic strong-field approximation, is the source term of a three-dimensional propagation code. The simulation results show remarkably good agreement with experiments performed in neon using laser pulses with durations of 30 and 7 fs. Both simulations and experiments show discrete and well-resolved harmonics even for the shortest driving pulses.Keywords
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