Ion acceleration with ultrafast lasers

Busch, S.; Schnürer, M.; Kalashnikov, M.; Schönnagel, H.; Stiel, H.; Nickles, P. V.; Sandner, W.; Ter-Avetisyan, S.; Karpov, V.; Vogt, U.
May 2003
Applied Physics Letters;5/12/2003, Vol. 82 Issue 19, p3354
Academic Journal
Hot-electron confinement can build up fields capable of accelerating ions up to MeV energies when an ultrashort 35-fs laser pulse at ∼ 2 × 10[SUP18] W/cm[SUP2] interacts with a small spherical target. Singly charged ions with different masses have similar energies. A simple phenomenological model describes how ultrashort and less-energy-consumptive pulses drive ions to MeV energies. The energetic and spatial-emission characteristics of protons, deuterons and oxygen ions released from water and heavy-water droplets of ∼15 μm in size was determined for this interaction scenario.


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