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4月29日 学术报告:基于相?#26376;?#31561;离子体镜的高次谐波和非线性康普顿散射效应

来源: 发布时间:2019-06-10 17:38:14
   报告题目:基于相?#26376;?#31561;离子体镜的高次谐波和非线性康普顿散射效应
  报告人:?#25628;?#29690; 研究员 
    单位:Institute of Physics, Academy of Science of Czech Republic (捷克科学院物理所)
ELI-Beamlines(极端激光装置) 
  时间:2019年4月29日(周一)10:00-11:00
  地点:溢智厅
  摘要: 
  The laser-plasma interactions are dominated by the QED regime since intensities of the forthcoming laser facilities are approaching 1023-24 W/cm2. Here we present the high brightness γ-photon emission and e+e- pair creation accompanied with the high harmonic generation. Relativistic oscillating mirror reflects the incident intense laser field and generates the focused attosecond pulse with enhanced intensity. A large number of high energy photons are emitted by the collisions between the radiation trapped electrons and the high harmonic pulses. The corresponding photons are counter-propagating through the strong laser field which provide a large cross section for pair creation. Relativistic positron bunches are generated and further accelerated in the reflected laser field.
  参考?#21335;?nbsp;
1.      Y. J. Gu, O. Klimo, S. V. Bulanov, S. Weber, Brilliant gamma-ray beam and electron–positron pair production by enhanced attosecond pulses, Communications Physics, 1, 93 (2018).
2.      Y. J. Gu, S. Weber, Intense, directional and tunable γ-ray emission via relativistic oscillating plasma mirror, Opt. Express, 26, 19932 (2018). 
  
   报告人简介: 

 ?#25628;?#29690;, 2013年博士毕业于复旦大学。博?#31185;?#38388;在日本宇都宫大学联合培养,现在ELI-Beamlines(极端激光装置)任研究员。主要从事激光与等离子体相互作用的理论及数?#30340;?#25311;研究。目前主要的研究方向集中于基于激光等离子体的粒子加速,强场下的辐射及QED效应,实验室天体物理和惯性?#38469;?#32858;变中的等离子体参量不稳定性。
   
   

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