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arXiv · 1905.03596

Multiple orbital effects in laser-induced electron diffraction of aligned molecules

Faruk Krečinić·Philipp Wopperer·Biagio Frusteri·Felix Brauße·Jean-Gabriel Brisset·Umberto De Giovannini·Angel Rubio·Arnaud Rouzée·Marc J. J. Vrakking
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Abstract

Photoelectron Angular Distributions (PADs) resulting from 800 nm and 1300 nm strong field ionization of impulsively aligned CF$_3$I molecules were analyzed using time-dependent density functional theory (TDDFT). The normalized difference between the PADs for aligned and anti-aligned molecules displays large modulations in the high-energy re-collision plateau that are assigned to the diffraction of back-scattered photoelectrons. The TDDFT calculations reveal that, in spite of their 2.6 eV energy difference, ionization from the HOMO-1 orbital contributes to the diffraction pattern on the same footing as ionization from the doubly degenerate HOMO orbital.

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Faruk Krečinić, Philipp Wopperer, Biagio Frusteri, Felix Brauße, Jean-Gabriel Brisset, Umberto De Giovannini, Angel Rubio, Arnaud Rouzée, Marc J. J. Vrakking. 2019-05-09. Multiple orbital effects in laser-induced electron diffraction of aligned molecules. https://doi.org/10.1103/physreva.98.041401

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