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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 180-183 |
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Khalilzadeh E, Rezaie S, Jafari M J, Chakhmachi A, Dehghani Z. Effect of ionization on the stochastic heating of electrons in the interaction of strong laser pulses with Hydrogen atoms. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :180-183
URL: http://opsi.ir/article-1-2335-en.html
URL: http://opsi.ir/article-1-2335-en.html
Elnaz Khalilzadeh1 
, Somayeh Rezaie *1 , Mahammad Jafar Jafari1 , Amir Chakhmachi1 , Zohre Dehghani1
, Somayeh Rezaie *1 , Mahammad Jafar Jafari1 , Amir Chakhmachi1 , Zohre Dehghani1
1- Plasma Physics & Fusion Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
Abstract: (803 Views)
In this paper, the interaction of a strong laser pulse with hydrogen atoms is considered and the chaotic motion of electrons in the field-ionized plasma is investigated. The length of the laser pulse is 300 femtoseconds and the amplitude of the dimensionless electric field of the laser is a_0=1. The results of the PIC simulation show that by considering ionization, the Raman backscattered radiations are seeded by a strong initial noise at the earlier times. Therefore, the Mendonca condition for chaos threshold is met sooner which in turn causes the electron stochastic heating start quickly.
Keywords: Laser-atom Interaction, Stochastic heating, Particle-in-Cell Simulation, Raman backscattering
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