Plasmon signatures in high harmonic generation
量子物理
2009-11-11 v3
摘要
High harmonic generation in polarizable multi-electron systems is investigated in the framework of multi-configuration time-dependent Hartree-Fock. The harmonic spectra exhibit two cut offs. The first cut off is in agreement with the well established, single active electron cut off law. The second cut off presents a signature of multi-electron dynamics. The strong laser field excites non-linear plasmon oscillations. Electrons that are ionized from one of the multi-plasmon states and recombine to the ground state gain additional energy, thereby creating the second plateau.
引用
@article{arxiv.quant-ph/0505184,
title = {Plasmon signatures in high harmonic generation},
author = {J. Zanghellini and Ch. Jungreuthmayer and T. Brabec},
journal= {arXiv preprint arXiv:quant-ph/0505184},
year = {2009}
}
备注
Major revision, 12 pages, 5 figures, submitted to J. Phys. B (2005), accepted