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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 166-169 |
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Khooniki R, Fallah R, Delshad H. Simulation of propagation of Gaussian laser beam in a collision cold plasma with FDTD method. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :166-169
URL: http://opsi.ir/article-1-2332-en.html
URL: http://opsi.ir/article-1-2332-en.html
1- Department of physics, University of Birjand, Birjand, Iran
Abstract: (902 Views)
In this paper the propagation of Gaussian laser beam in a collision cold plasma is simulated and studied. By using the Maxwell's equations and dielectric constant of a collision cold plasma, the relation for the vector of electric displacement, polarization and electric field in the plasma are calculated. Then, by using the FDTD method, the distribution of electric and magnetic fields of the beam are simulated in two dimensions during propagation in plasma. The results show that due to the effect of ponderomotive force on the propagation of the Gaussian beam in the plasma, the beam converges and the beam gradually loses energy.
Keywords: Laser beam, collision plasma, finite difference time domain, laser propagation, cold plasma
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