| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Generation of Ultrahigh-Velocity Collisionless Electrostatic Shocks Using an Ultra-Intense Laser Pulse Interacting with Foil-Gas Target |
| Shu-Kai He1, Jin-Long Jiao2**, Zhi-Gang Deng1, Feng Lu1, Lei Yang1, Fa-Qiang Zhang1, Ke-Gong Dong1, Wei Hong1, Zhi-Meng Zhang1, Bo Zhang1, Jian Teng1, Wei-Min Zhou1, Yu-Qiu Gu1 |
1Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900
2School of Physics, Peking University, Beijing 100871
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| Cite this article: |
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Shu-Kai He, Jin-Long Jiao, Zhi-Gang Deng et al 2019 Chin. Phys. Lett. 36 105201 |
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Abstract Ultra high-velocity collisionless shocks are generated using an ultra-intense laser interacting with foil-gas target, which consists of copper foil and helium gas. The energy of helium ions accelerated by shock and the proton probing image of the shock electrostatic field show that the shock velocity is 0.02$c$, where $c$ is the light speed. The numerical and theory studies indicate that the collisionless shock velocity exceeding 0.1$c$ can be generated by a laser pulse with picosecond duration and an intensity of 10$^{20}$ W/cm$^{2}$. This system may be relevant to the study of mildly relativistic velocity collisionless shocks in astrophysics.
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Received: 22 May 2019
Published: 21 September 2019
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| PACS: |
52.38.-r
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(Laser-plasma interactions)
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52.38.Kd
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(Laser-plasma acceleration of electrons and ions)
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52.65.Rr
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(Particle-in-cell method)
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| Fund: Supported by the Science Challenge Project under Grant Nos TZ2018005 and TZ2016005, and the National Key Research and Development Program of China under Grant No 2016YFA0401100. |
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