| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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The inverse Bremsstrahlung absorption in the presence of Maxwellian and non-Maxwellian electrons |
| Mehdi Sharifian, Fatemeh Ghoveisi, Leila Gholamzadeh, Narges Firouzi Farrashbandi |
| Physics Department, Yazd University, Safaeyeh, Yazd, P. O. Box 891995-741, Iran |
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Abstract Inverse Bremsstrahlung absorption (IBA) of an intense laser field in plasma containing Maxwellian and non-Maxwellian (with Kappa and q-nonextensive distribution functions) electrons is studied analytically. Our results show that IBA decreases with an increase in temperature at high intensities and a decrease in plasma density for all kinds of distribution functions. Another striking result is that IBA is independent of the laser intensity at low intensity but is dependent on it when the intensity is going to rise. Also, it could be find that the behavior of the absorption as the function of laser intensity for the Kappa distribution with κ=10 at low intensity is close to that for the Maxwellian distribution, but at high intensity it is close to that in the presence of q-nonextensive electrons with q=0.9. These results provide insights into the inverse Bremsstrahlung absorption in the laser-plasma interactions.
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Received: 30 April 2019
Revised: 29 July 2019
Accepted manuscript online:
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PACS:
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52.20.Fs
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(Electron collisions)
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52.25.Dg
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(Plasma kinetic equations)
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52.38.-r
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(Laser-plasma interactions)
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52.38.Dx
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(Laser light absorption in plasmas (collisional, parametric, etc.))
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Corresponding Authors:
Mehdi Sharifian
E-mail: mehdi.sharifian@yazd.ac.ir
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Cite this article:
Mehdi Sharifian, Fatemeh Ghoveisi, Leila Gholamzadeh, Narges Firouzi Farrashbandi The inverse Bremsstrahlung absorption in the presence of Maxwellian and non-Maxwellian electrons 2019 Chin. Phys. B 28 105202
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