Molecular photoelectron momentum and angular distributions of N2 molecules by ultrashort attosecond laser pulses*
- 13 November 2020
- journal article
- research article
- Published by IOP Publishing in Chinese Physics B
- Vol. 30 (4), 043201
- https://doi.org/10.1088/1674-1056/abca22
Abstract
The ultrafast photoionization dynamics of N2 molecules by X-ray/XUV laser pulses is investigated. The molecular frame photoelectron momentum distributions (MF-PMDs) and the molecular frame photoelectron angular distributions (MF-PADs) are obtained by numerically solving 2D timedependent Schrödinger equations within single electron approximation (SEA) frame. The results show that the molecular photoionization diffraction appears in 5 nm laser fields. However, when the laser wavelength is 30 nm, the molecular photoionization diffraction disappears and the MF-PMDs show four-lobe pattern. The ultrafast photoionization model can be employed to describe the MF-PMDs and MF-PADs of N2 molecules.Keywords
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