Laser-triggered ion acceleration at moderate intensity and pulse duration |
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| Authors: | T V Liseykina V Yu Bychenkov G I Dudnikova F Pegoraro |
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| Institution: | (1) Institute of Computation Technologies, Siberian Branch of the Russian Academy of Sciences, Lavrentiev ave.6, Novosibirsk, 630090, Russia;(2) P.N. Lebedev Institute Physics of the Russian Academy of Sciences, Leninskij Prospekt, 53, Moscow, 119991, Russia;(3) Physics Department, University of Pisa & INFM, Largo Pontecorvo, 3, 56127 Pisa, Italy;(4) Institute fur Theoretische Physik I, University of Bochum, 44780 Bochum, Germany |
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| Abstract: | Two-dimensional particle-in-cell (PIC) simulations of laser-triggered ion acceleration in overdense plasma at moderate intensity (≃1.4×1018 W/cm2) and pulse duration (≃0.5 ps) are presented. We focus on the comparison of the efficiency of ion acceleration for normal and oblique incidence of the laser light, for backward and forward directions of ion emission, and for large and small focal spots. We discuss the correlation between the properties of accelerated ions and hot electrons, and identify the tendency of the ion spectra in the forward direction to those typical for the isothermal and adiabatic regimes of plasma expansion. |
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| Keywords: | 52 38 Kd 52 35 Mw 52 75 Di |
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