Multielectron signatures in the polarization of high-order harmonic radiation

作者:Zhao, Zengxiu*; Yuan, Jianmin; Brabec, Thomas
来源:Physical Review A, 2007, 76(3): 031404.
DOI:10.1103/PhysRevA.76.031404

摘要

The polarization of high-order harmonic radiation emitted from N-2 molecules interacting with a linearly polarized laser pulse is investigated theoretically. We find that the exchange effect between the recombining electron and the bound core electrons imprints a clear signature onto the high-order harmonic polarization and its dependence on the alignment angle between the molecular axis and driving laser electric field. Our analysis reveals an observable for the experimental investigation of many-electron dynamics in intense laser fields.