Clocking ultrafast wave packet dynamics in H2 by using UV pump - UV probe schemes

28th International Conference on Photonic, Electronic and Atomic Collisions

González-Castrillo, A.^1 ; Palacios, A.^1 ; Martin, F.^1,2

Departamento de Química, Universidad Autónoma de Madrid, Modulo 13, Madrid

28049, Spain^1

Instituto Madrileño de Estudios Avanzados en Nanociencia, Cantoblanco, Madrid

28049, Spain^2

关键词: Dissociative ionization;    Electron angular distribution;    Hydrogen molecule;    Ionization process;    Neutral molecules;    Nuclear wave packet;    Ultra-fast;    Wave-packet dynamics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/2/022027/pdf
DOI  :  10.1088/1742-6596/488/2/022027

来源: IOP

【 摘 要 】

We theoretically investigate the use of UV pump - UV probe schemes with two identical pulses to excite and ionize the hydrogen molecule. The nuclear wave packet (NWP) generated in excited states of neutral molecules is traced by analyzing the asymmetry of the electron angular distributions resulting from dissociative ionization. The mapped NWP can be later used to selectively launch the ionization process into different channels.