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Photonics 2015, 2(1), 71-92; doi:10.3390/photonics2010071

Electron Interference in Molecular Circular Polarization Attosecond XUV Photoionization

Laboratoire de Chimie Théorique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, Québec, J1K 2R1 Canada,
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Received: 3 December 2014 / Accepted: 8 January 2015 / Published: 12 January 2015
(This article belongs to the Special Issue Extreme UV Lasers: Technologies and Applications)
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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 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. View Full-Text
Keywords: electron interference; molecular photoelectron angular distribution; attosecond circularly polarized XUV laser pulse; molecular orientation electron interference; molecular photoelectron angular distribution; attosecond circularly polarized XUV laser pulse; molecular orientation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yuan, K.-J.; Bandrauk, A.D. Electron Interference in Molecular Circular Polarization Attosecond XUV Photoionization. Photonics 2015, 2, 71-92.

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