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year 27, Issue 1 (Iranian Nano-Photonic Conference 2020 2020)
ICOP & ICPET _ INPC _ ICOFS 2020, 27(1): 49-51 |
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Zare S. Enhancement of plasma wakefield amplitude in interaction with laser pulse. ICOP & ICPET _ INPC _ ICOFS 2020; 27 (1) :49-51
URL: http://opsi.ir/article-1-2285-en.html
URL: http://opsi.ir/article-1-2285-en.html
Photonics and Quantum Technology Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
Abstract: (1241 Views)
In this study, the effect of wake-field amplification due to various shapes of laser pulses in the plasma is investigated. Considering Maxwell’s equations, an equation for the amplitude of the wakefield electric field is obtained. This equation is solved for three different laser pulse shapes. It is found that the square wave produces a higher amplitude wakefield than the sinusoidal and Gaussian pulses. Moreover, an equation for two laser pulse shapes is achieved. In this manner, the generated wakefield amplitude depends on the interpulse separation. When the separation is %85 of the plasma wavelength, the wakefield will be the maximum value. Furthermore, the solution of the equation by two sinusoidal pulses is noticed that the produced wakefield amplitude in the first peak is approximately five times greater than the one related to the single pulse. Besides, the amplitude of the wakefield produced by two pulses is not constant and it is periodically increasing.
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