|Title: ||Microscopic description of atomic clusters in intense laser fields|
|Project leader: ||Prof. Dr. Thomas Fennel |
Clusters in intense laser fields represent an ideal testing ground for investigating ultrafast response effects of dense many-particle systems to extremely high excitations. The project is devoted to the analysis of the microscopic electron and ion dynamics in homo- and heterogenous clusters subject to intense laser pulses by means of large-scale semiclassical simulations. The focus of the study is put on the impact of collective electron excitations and microfield effects on the ionization-, heating-, and acceleration processes and the signatures of which in experimentally accessible decay channels, such as mass- and energy- and charge distribution spectra. A key question of the investigation is how the femtosecond dynamics and, e.g., the electron spectra and charge distributions, can be controlled in detail with laser pulses shaped in amplitude and phase.
Collision-enhanced plasmonic electron acceleration in small metal clusters
Köhn J., Redmer R., Fennel Th.
New Journal of Physics 14:055011, 2012
Invited article for focus issue on Correlation Effects in Radiation Fields
Süßmann F., Stebbings S., Zherebtsov S., Chew S.H., Rühl E., Kleineberg U., Stockman M.I., Fennel Th., Kling M.
Optimal control of the strong-field ionization of silver clusters in helium droplets
Truong N.X., Hilse P., Göde S., Przystawik A., Döppner T., Fennel Th., Bornath Th., Tiggesbäumker J., Schlanges M., Gerber G., Meiwes-Broer K.-H.
Phys. Rev. A 81:013201, 2010
Highly Charged Ions from Laser-Cluster Interactions: Local-Field-Enhanced Impact Ionization and Frustrated Electron-Ion Recombination
Fennel Th., Ramunno L., Brabec T.
Phys. Rev. Lett. 99:233401, 2007
Controlling the Coulomb Explosion of Silver Clusters by Femtosecond Dual-Pulse Laser Excitation
Döppner T., Fennel Th., Diederich Th., Tiggesbäumker J., Meiwes-Broer K.-H.
Phys. Rev. Lett. 94:13401, 2005