用动态等离子体密度光栅实现强激光束的去极化

IF 5.2 1区 物理与天体物理 Q1 OPTICS
Y. Wang, S. Weng, P. Li, Z. Shen, X. Jiang, J. Huang, X. L. Zhu, H. Ma, X. B. Zhang, X. Li, Z. Sheng, J. Zhang
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引用次数: 1

摘要

摘要等离子体密度光栅作为一种典型的能承受超高光强的等离子体光学元件,在强激光脉冲驱动下得到了广泛的研究和应用。在这里,我们证明了两个相交的驱动激光脉冲驱动的等离子体密度光栅不仅在空间上不均匀,而且随时间而变化。因此,通过这种动态等离子体密度光栅的探测激光脉冲将被去极化,即其极化在时空上都是可变的。更重要的是,如果选择合适的偏振角,交叉激光束可以自发地发生去极化。利用动态等离子体密度光栅进行激光退极化,可用于减轻激光驱动惯性约束核聚变的参数不稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Depolarization of intense laser beams by dynamic plasma density gratings
Abstract As a typical plasma-based optical element that can sustain ultra-high light intensity, plasma density gratings driven by intense laser pulses have been extensively studied for wide applications. Here, we show that the plasma density grating driven by two intersecting driver laser pulses is not only nonuniform in space but also varies over time. Consequently, the probe laser pulse that passes through such a dynamic plasma density grating will be depolarized, that is, its polarization becomes spatially and temporally variable. More importantly, the laser depolarization may spontaneously take place for crossed laser beams if their polarization angles are arranged properly. The laser depolarization by a dynamic plasma density grating may find application in mitigating parametric instabilities in laser-driven inertial confinement fusion.
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来源期刊
High Power Laser Science and Engineering
High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics
CiteScore
7.10
自引率
4.20%
发文量
401
审稿时长
21 weeks
期刊介绍: High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.
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