https://doi.org/10.1140/epjd/e2010-00217-2
Multi-peak structure of the ion current in laser produced plasma
1
Department of Physics, Technical “Gh. Asachi” University Blvd. Mangeron, Iasi, 700029, Romania
2
Laboratory of Advanced Science and Technology for Industry, University of Hyogo, Hyogo, 678-1205, Japan
3
Faculty of Physics, “Al. I. Cuza” University, Iasi, 700050, Romania
Corresponding author: a pnica@tuiasi.ro
Received:
28
April
2010
Revised:
25
June
2010
Published online:
30
August
2010
The experimental multi-peak structure of the transient ion current recorded by a charge-collector probe during the laser produced plasma expansion is reported for Sn and Li targets, and various focusing conditions and laser beam energies. Using a simple hydrodynamic model, the numerical simulations can reproduce well this type of behavior. Theoretically, a fractal hydrodynamic model is developed in a non-differentiable space-time. The solutions of Gaussian wave packet and `bouncing' Gaussian wave packets types are found to explain the plasma expansion and to give a reasonable mathematical description of plasma splitting process.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010
