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Keywords = attosecond circularly polarized XUV laser pulse

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22 pages, 1527 KB  
Review
Electron Interference in Molecular Circular Polarization Attosecond XUV Photoionization
by Kai-Jun Yuan and André D. Bandrauk
Photonics 2015, 2(1), 71-92; https://doi.org/10.3390/photonics2010071 - 12 Jan 2015
Cited by 3 | Viewed by 7117
Abstract
Two-center electron interference in molecular attosecond photoionization processes is investigated from numerical solutions of time-dependent Schrödinger equations. Both symmetric H\(_2^+\) and nonsymmetric HHe\(^{2+}\) one electron diatomic systems are ionized by intense attosecond circularly polarized XUV laser pulses. Photoionization of these molecular ions shows [...] Read more.
Two-center electron interference in molecular attosecond photoionization processes is investigated from numerical solutions of time-dependent Schrödinger equations. Both symmetric H\(_2^+\) and nonsymmetric HHe\(^{2+}\) one electron diatomic systems are ionized by intense attosecond circularly polarized XUV laser pulses. Photoionization of these molecular ions shows signature of interference with double peaks (minima) in molecular attosecond photoelectron energy spectra (MAPES) at critical angles \(\vartheta_c\) between the molecular \(\textbf{R}\) axis and the photoelectron momentum \(\textbf{p}\). The interferences are shown to be a function of the symmetry of electronic states and the interference patterns are sensitive to the molecular orientation and pulse polarization. Such sensitivity offers possibility for imaging of molecular structure and orbitals. Full article
(This article belongs to the Special Issue Extreme UV Lasers: Technologies and Applications)
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