Molecular interferometer using XUV attosecond pulses to unravel electron and nuclear dynamics

29th International Conference on Photonic, Electronic, and Atomic Collisions

Palacios, Alicia^1 ; González-Castrillo, Alberto^1 ; Martín, Fernando^1,2

Departamento de Química, Universidad Autónoma de Madrid, Módulo 13, Cantoblanco, Madrid

28049, Spain^1

Instituto Madrileño de Estudios Avanzados (IMDEA) en Nanociencia, Cantoblanco, Madrid, 28049, Spain^2

关键词: Attosecond pulse;    Hydrogen molecule;    Ionization yield;    Ionized state;    Laser induced;    Molecular potential;    Nuclear dynamics;    Two photon absorption;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112039/pdf
DOI  :  10.1088/1742-6596/635/11/112039

来源: IOP

【 摘 要 】

Two identical XUV attosecond pulses interact with the hydrogen molecule creating an interferometer resulting from the direct and sequential two-photon absorption paths reaching the same final ionized states. The dependence of the ionization yields with the time delay between the pulses allows to reconstruct the pumped vibronic (electronic and vibrational) wave packet created in the singly excited states of the molecule. The use of XUV pulses avoids a laser-induced distortion of the molecular potential, ensuring the characterization of the intrinsic behaviour of the system.