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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 813-816 |
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Khalilzadeh E, Chakhmachi A, Yazdanpanah J. Influence of pulse shape on chaotic behavior of electrons in strong laser pulse interaction with plasma. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :813-816
URL: http://opsi.ir/article-1-1956-en.html
URL: http://opsi.ir/article-1-1956-en.html
1- Plasma Physics & Fusion Research School, NSRT, Tehran, Iran
Abstract: (1613 Views)
In this paper, the effect of the laser pulse shape on the chaotic behavior of electrons in strong laser pulse interaction with under-dense plasma is investigated using the fully kinetic PIC simulations. Our investigations show that occurring the chaos is strongly dependent on the initial conditions and by decreasing the laser pulse rise-time from 60 fs to 30 fs which is accompanied by an increase in the Ponderomotive and the electrostatic forces, the behavior of the electrons is completely different. Indeed, unlike the pulses with quickly rising time, in pulse with long rise-time, the field amplitude of scattered fields in plasma can act as a second electromagnetic wave and provide the necessary condition for the chaos.
Keywords: Laser-Plasma Interaction, Chaotic Behaviour, Particle-in-Cell Simulation, Laser Pulse Shape
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