Wavebreaking-associated transmitted emission of attosecond extreme-ultraviolet pulses from laser-driven overdense plasmas
Wavebreaking-associated transmitted emission of attosecond extreme-ultraviolet pulses from laser-driven overdense plasmas
复制标题
激光驱动的高密度等离子体中与破波相关的阿秒极紫外脉冲透射发射
DOI：
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
A. Pukhov
中科院分区：
文献类型：
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作者：
Zi;M. Cherednychek;A. Pukhov
我们提出了一种在破波状态下从相对论性激光驱动的过密等离子体表面产生阿秒极紫外（XUV）脉冲的新机制。通过细胞内粒子模拟和分析，我们证明，在我们考虑的参数下观察到的超短 XUV 发射主要是由于波破碎后强烈的等离子体密度振荡造成的。前表面层中的强密度变化和横向场的耦合产生频率主要在局部等离子体频率附近的透射发射。该机制为固体表面产生 XUV 的场景以及激光-等离子体相互作用的动力学提供了新的见解。
We present a new mechanism of attosecond extreme-ultraviolet (XUV) pulses generation from a relativistic laser-driven overdense plasma surfaces in the wavebreaking regime. Through particle-in-cell simulations and analysis, we demonstrate that the observed ultrashort XUV emission for the parameters we considered is predominantly due to a strong plasma-density oscillation subsequent to wavebreaking. The coupling of the strong density variation and the transverse fields in the front surface layer gives rise to the transmitted emission with frequencies mainly around the local plasma frequency. This mechanism provides new insights into the scenarios of XUV generation from solid surfaces and the dynamics of laser–plasma interactions.
影响因子：
19.6
作者：
Nomura, Y.;Hoerlein, R.;Tsakiris, G. D.
通讯作者：
Tsakiris, G. D.