Correlated electronic decay following intense near-infrared ionization of clusters

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

Schütte, Bernd^1,4 ; Arbeiter, Mathias^2 ; Fennel, Thomas^2 ; Jabbari, Ghazal^3 ; Kuleff, Alexander I.^3 ; Vrakking, Marc J.J.^1 ; Rouzée, Arnaud^1

Max-Born-Institut, Max-Born-Strasse 2A, Berlin

12489, Germany^1

Institut für Physik, Universität Rostock, Universitätsplatz 3, Rostock

18055, Germany^2

Theoretische Chemie, PCI, Universität Heidelberg, Im Neuenheimer Feld 229, Heidelberg

69120, Germany^3

Department of Physics, Imperial College London, London

SW7 2AZ, United Kingdom^4

关键词: Cluster electrons;    Electron decay;    Electron kinetic energy;    Electronic decay;    Excess energy;    Intense laser pulse;    Nanometer-sized particles;    Rydberg atoms;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/1/012025/pdf
DOI  :  10.1088/1742-6596/635/1/012025

来源: IOP

【 摘 要 】

We report on a novel correlated electronic decay process following extensive Rydberg atom formation in clusters ionized by intense near-infrared fields. A peak close to the atomic ionization potential is found in the electron kinetic energy spectrum. This new contribution is attributed to an energy transfer between two electrons, where one electron decays from a Rydberg state to the ground state and transfers its excess energy to a weakly bound cluster electron in the environment that can escape from the cluster. The process is a result of nanoplasma formation and is therefore expected to be important, whenever intense laser pulses interact with nanometer-sized particles.