Mapping ultrafast dynamics of highly excited D2+ by ultrashort XUV pump - IR probe radiation

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

Bello, R.^1 ; Martin, L.S.^2 ; Hogle, C.W.^2 ; Palacios, A.^1 ; Sanz-Vicario, J.L.^3 ; Tong, X.M.^5 ; Martín, F.^1,4 ; Murnane, M.^2 ; Kapteyn, H.C.^2 ; Ranitovic, P.^2

Departamento de Química, Universidad Autónoma de Madrid, M-13, Cantoblanco Madrid

28049, Spain^1

JILA and Department of Physics, University of Colorado and NIST, Boulder

CO

80309-0440, United States^2

Grupo de Física Atómica y Molecular, Instituto de Física, Universidad de Antioquia, Medellín, Colombia^3

Instituto Madrileño de Estudios Avanzados (IMDEA) en Nanociencia, Cantoblanco, Madrid

28049, Spain^4

Institute of Materials Science, University of Tsukuba, 1-1-1 Tennodai, Ibaraki, Tsukuba

305-8573, Japan^5

关键词: Ab initio;    Coulomb explosion;    Dominant contributions;    Ionic state;    Nuclear fragments;    Nuclear wave packet;    Second electrons;    Ultra-fast dynamics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112080/pdf
DOI  :  10.1088/1742-6596/635/11/112080

来源: IOP

【 摘 要 】

An ultrashort XUV laser pulse ionizes the D2molecule creating an electronic and nuclear wave packet, with the dominant contributions from the 2sσgand 2pπuionic states. A delayed interaction with a 780 nm IR field ejects the second electron, leading to the Coulomb explosion of the molecule, whose nuclear fragments, recorded in coincidence, map the dynamics associated to those two ionic excited states. By varying the orientation of the light polarization, one can control the molecular dynamics by modifying the ratio between the ionic states. Experimental and ab initio theoretical data are jointly reported.