High energy electrons and ions generation by an ultra-intense laser plasma interactions

Abstract

Summary form only given, as follows. High energy electron and ions are produced by an interaction of ultra-intense laser pulse with various density plasmas. With the progress of short-pulse multiterawatt laser, it has become possible to produce MeV electron in a plasma. These electrons can be used apply to fusion energy research, particle acceleration, and medicine. Two-dimensional (2D) particle-in-cell (PIC) simulations were performed to produce high energy electrons and ions. We studied the interaction of P-polarised shaped laser pulse with solid foil targets. In this case an interaction of a main part of laser pulse extremely enhanced high energy electrons and ions at some conditions. Proposed mechanism of electrons and ions acceleration by laser waves in such plasmas raise electrons and ions energy up to 10 MeV for laser intensity more than 10/sup 19/ W/cm/sup 2/. Conversion coefficient of laser energy to electron one strongly depends on laser intensity.