Bicircular attoclock with molecules as a probe of strong-field Stark shifts and molecular properties

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Original languageEnglish
Article numberL020801
Number of pages7
JournalPhysical Review A
Volume109
Issue number2
Publication statusPublished - 13 Feb 2024

Abstract

A theoretical study of the orientation-dependent attoclock shift in photoelectron momentum distributions generated by ionization of HeH+ by a counter-rotating two-color bicircular laser field is presented. Solutions of the two-dimensional time-dependent Schrödinger equation are extrapolated to the adiabatic limit and compared to two-step trajectory models. The trajectory models are sensitive to the choice of the tunnel exit point, which depends on the dipole moment and polarizability tensor of the molecule. Using a suitable trajectory model, we are thus able to reconstruct these molecular properties from the momentum distributions within about 7% deviation from the exact values.

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Bicircular attoclock with molecules as a probe of strong-field Stark shifts and molecular properties. / Winter, Paul; Lein, Manfred.
In: Physical Review A, Vol. 109, No. 2, L020801, 13.02.2024.

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abstract = "A theoretical study of the orientation-dependent attoclock shift in photoelectron momentum distributions generated by ionization of HeH+ by a counter-rotating two-color bicircular laser field is presented. Solutions of the two-dimensional time-dependent Schr{\"o}dinger equation are extrapolated to the adiabatic limit and compared to two-step trajectory models. The trajectory models are sensitive to the choice of the tunnel exit point, which depends on the dipole moment and polarizability tensor of the molecule. Using a suitable trajectory model, we are thus able to reconstruct these molecular properties from the momentum distributions within about 7% deviation from the exact values.",
author = "Paul Winter and Manfred Lein",
note = "Funding Information: Acknowledgments. This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through Project No. 498967973 and within the Priority Programme 1840, Quantum Dynamics in Tailored Intense Fields (QUTIF). ",
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