The evolution of large metal clusters in a super-intense laser field

The evolution of large metal clusters is considered when the cluster is irr adiated by a super-intense ultra-short laser pulse. The cluster excitation results from the interaction of the electron subsystem with the laser field . The electron temperature and the charge of the produced cluster ion are d erived for this process. The optical density of the cluster plasma is found to be relatively low for resonant radiative transitions of multicharged at omic ions inside the cluster. Thus, the reabsorption of photons is ineffici ent in the cluster plasma. The optimal conditions are analyzed for the effe ctive absorption of laser radiation by the metal cluster. It was found that a maximum of absorption was achieved for large sizes of the clusters.