Charge-state and energy enhancement of laser-produced ions due to nonlinear processes in preformed plasma
2005
At laser intensities above IL∼1×1014W∕cm2(ILλ2∼1×1014Wμm2∕cm2), nonlinear processes in preformed plasma, such as self-focusing, influence ion generation significantly and ions with higher charge states and energies can be produced than without interaction with preformed plasma. The step (spread) in plots of experimental data of ion energy per nucleon versus ILλ2 reported by other researchers most likely reflects high-intensity laser interactions with and without preformed plasma.
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