Two-color high-harmonic generation from relativistic plasma mirrors.
Two-color high-harmonic generation from relativistic plasma mirrors.
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DOI：
10.1103/physreve.108.015201
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发表时间：
2023-07
期刊：
影响因子：
--
通讯作者：
N. Beier;F. Dollar
中科院分区：
文献类型：
--
作者：
N. Beier;F. Dollar
高强度激光与固体相互作用能够通过高次谐波产生阿秒光爆，大部分工作集中在单光束相互作用上。在本文中，我们进行了数值研究的作用，波长和偏振的相对论，高谐波产生的垂直入射，两束相互作用的等离子体镜。我们发现，双光束谐波产生机制是一个强大的过程描述了一组定义良好的选择规则。我们证明了，从正常入射相互作用发射的谐波表现出强度优化时，入射场的双色圆偏振场的强度相等。
High-intensity laser solid interactions are capable of generating attosecond light bursts via high-harmonic generation-most work focuses on single beam interactions. In this paper, we perform a numerical investigation on the role of wavelength and polarization in relativistic, high-harmonic generation from normal-incidence, two-beam interactions off plasma mirrors. We find that the two-beam harmonic-generation mechanism is a robust process described by a set of well-defined selection rules. We demonstrate that the emitted harmonics from normal-incidence interactions exhibit an intensity optimization when the incident fields are of equal intensity for two-color circularly polarized fields.