Generation of hemispherical fast electron waves in the presence of preplasma in ultraintense laser-matter interaction

0439180 - FZÚ 2015 RIV US eng J - Článek v odborném periodiku
Yang, H.X. - Ma, Y.Y. - Xu, H. - Shao, F.Q. - Yu, M.Y. - Yin, Y. - Zhuo, H.B. - Borghesi, Marco
Generation of hemispherical fast electron waves in the presence of preplasma in ultraintense laser-matter interaction.
Laser and Particle Beams. Roč. 31, č. 3 (2013), s. 379-386. ISSN 0263-0346. E-ISSN 1469-803X
Grant CEP: GA MŠMT ED1.1.00/02.0061; GA MŠMT EE2.3.20.0279
Grant ostatní: ELI Beamlines(XE) CZ.1.05/1.1.00/02.0061; LaserZdroj (OP VK 3)(XE) CZ.1.07/2.3.00/20.0279
Institucionální podpora: RVO:68378271
Klíčová slova: betatron resonance * electron plasma waves * ponderomotive force * preplasma
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 1.701, rok: 2013

Hemispherical electron plasma waves generated from ultraintense laser interacting with a solid target having a subcritical preplasma is studied using particle-in-cell simulation. As the laser pulse propagates inside the preplasma, it becomes selffocused due to the response of the plasma electrons to the ponderomotive force. The electrons are mainly heated via betatron resonance absorption and their thermal energy can become higher than the ponderomotive energy. The hot electrons easily penetrate through the thin solid target and appear behind it as periodic hemispherical shell-like layers separated by the laser wavelength.
Trvalý link: http://hdl.handle.net/11104/0242474