• DOI:10.1021/acs.jpca.9b11433
• Corpus ID: 208310203

The Effect of Nuclear-Quadrupole Coupling in the Laser Induced Alignment of Molecules.

@article{Thesing2020TheEO,
  title={The Effect of Nuclear-Quadrupole Coupling in the Laser Induced Alignment of Molecules.},
  author={Linda V. Thesing and Andrey Yachmenev and Rosario Gonz{\'a}lez-F{\'e}rez and Jochen K{\"u}pper},
  journal={The journal of physical chemistry. A},
  year={2020}
}

• Linda V. Thesing, A. Yachmenev, +1 author J. Küpper
• Published 27 November 2019
• Physics
• The journal of physical chemistry. A

We present a theoretical study of the time-dependent laser alignment of molecules taking into account the hyperfine coupling due to nuclear-quadrupole interactions. The coupling of nuclear spins to the overall angular momentum of molecules significantly influences their rotational dynamics. Here, we systematically analyze the impact of the nuclear-quadrupole coupling on the rotational dynamics of the linear I2 and the asymmetric-top diiodobenzene molecule induced by external laser fields. We explore different regimes of pulse shapes and laser-pulse intensities and detail under which conditions the quadrupole coupling cannot be neglected in the description of the laser alignment of molecules.