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arXiv · 2303.04858

Diatomic molecule in a strong infrared laser field: level-shifts and bond-length change due to laser-dressed Morse potential

Sándor Varró·Szabolcs Hack·Gábor Paragi·Péter Földi·Imre F. Barna·Attila Czirják
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Abstract

We present a general mathematical procedure to handle interactions described by a Morse potential in the presence of a strong harmonic excitation. We account for permanent and field-induced terms and their gradients in the dipole moment function, and we derive analytic formulae for the bond-length change and for the shifted energy eigenvalues of the vibrations, by using the Kramers-Henneberger frame. We apply these results to the important cases of $\mathrm{H}_{2}$ and $\mathrm{LiH}$, driven by a near- or mid-infrared laser in the $10^{13}$ $\mathrm{ W/cm^2}$ intensity range.

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Sándor Varró, Szabolcs Hack, Gábor Paragi, Péter Földi, Imre F. Barna, Attila Czirják. 2023-03-08. Diatomic molecule in a strong infrared laser field: level-shifts and bond-length change due to laser-dressed Morse potential. https://doi.org/10.1088/1367-2630/acde9e

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