Electron release of rare gas atom clusters under an intense laser pulse

Details Electron release of rare gas atom clusters under an intense laser pulse Electron release of rare gas atom clusters under an intense laser pulse

2002-06-19

arxiv.org/abs/physics/0206070v1

Physics

Atomic and Molecular Clusters

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.89.173401

Calculating the energy absorption of atomic clusters as a function of the laser pulse length $T$ we find a maximum for a critical $T^*$. We show that $T^*$ can be linked to an optimal cluster radius $R^*$. The existence of this radius can be attributed to the enhanced ionization mechanism originally discovered for diatomic molecules. Our findings indicate that enhanced ionization should be operative for a wide class of rare gas clusters. From a simple Coulomb explosion ansatz, we derive an analytical expression relating the maximum energy release to a suitably scaled expansion time which can be expressed with the pulse length $T^*$.

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