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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 125-128 |
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Madhani A, irani E, sadeghifaraz A, monfared M. Effect of laser pulse polarization on high harmonic generation from chlorine molecule. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :125-128
URL: http://opsi.ir/article-1-2778-en.html
URL: http://opsi.ir/article-1-2778-en.html
Abstract: (762 Views)
In this study, the effect of femtosecond laser polarization on the high harmonic generation and generated attosecond pulse from the chlorine molecule has been studied. linear and elliptical polarizations have been assumed for the femtosecond laser and calculations have been performed using time-dependent density functional theory in the three-dimensional real space. The results show a decrease in the intensity of the harmonics and the attosecond pulses when the ellipticity of the femtosecond laser is increased. Analyzing the intensity of the 24th harmonic order demonstrates that by increasing the ellipticity of the femtosecond laser from zero to 0.2 (0.4), the intensity of this harmonic decreases by about one (two) order of magnitude. The results of this research also show that changing the polarization of the driving pulse from linear to elliptical, reduces the intensity of the output attosecond pulse and increases their width.
Keywords: Attosecond pulse, High harmonic generation, Chlorine molecule, Time dependent density functional theory
Type of Study: Experimental |
Subject:
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