通过随源扩展法研究磁化等离子体内高斯激光束的自聚焦情况

IF 2 3区 物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS Physics of Plasmas Pub Date : 2024-08-05 DOI:10.1063/5.0211393
A. A. Molavi Choobini, S. S. Ghaffari-Oskooei
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引用次数: 0

摘要

自聚焦是强激光场和等离子体相互作用产生的一种非线性光学现象。本研究利用一种新方法--依赖源的扩展,研究了高斯激光束在磁化等离子体环境中的自聚焦行为。考虑到等离子体密度和外部磁场的影响,通过采用依赖源的扩展,我们探索了激光光束传播的复杂动态。通过严格的数学分析和数值模拟,特别是在等离子体引起的非线性情况下,我们阐明了光束的高斯轮廓和自聚焦机制之间的相互作用。我们的研究结果揭示了激光光束在不同参数(包括思索动力、相对论因素、等离子体频率、偏振态、外磁场、波长和激光强度)条件下的演变过程。这项研究不仅有助于加深我们对激光与等离子体相互作用的基本理解,而且有望优化激光驱动的应用。
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Investigation of self-focusing of Gaussian laser beams within magnetized plasma via source-dependent expansion method
Self-focusing emerges as a nonlinear optical phenomenon resulting from an intense laser field and plasma interaction. This study investigates the self-focusing behavior of Gaussian laser beams within magnetized plasma environments utilizing a novel approach, source-dependent expansion. By employing source-dependent expansion, we explore the intricate dynamics of laser beam propagation, considering the influence of plasma density and external magnetic fields. The interplay between the beam's Gaussian profile and the self-focusing mechanism through rigorous mathematical analysis and numerical simulations, particularly in the presence of plasma-induced nonlinearities, is elucidated here. Our findings reveal crucial insight into the evolution of laser beams under diverse parameters, including the ponderomotive force, relativistic factors, plasma frequency, polarization states, external magnetic field, wavelength, and laser intensity. This research not only contributes to advancing our fundamental understanding of laser–plasma interactions but also holds promise for optimizing laser-driven applications.
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来源期刊
Physics of Plasmas
Physics of Plasmas 物理-物理:流体与等离子体
CiteScore
4.10
自引率
22.70%
发文量
653
审稿时长
2.5 months
期刊介绍: Physics of Plasmas (PoP), published by AIP Publishing in cooperation with the APS Division of Plasma Physics, is committed to the publication of original research in all areas of experimental and theoretical plasma physics. PoP publishes comprehensive and in-depth review manuscripts covering important areas of study and Special Topics highlighting new and cutting-edge developments in plasma physics. Every year a special issue publishes the invited and review papers from the most recent meeting of the APS Division of Plasma Physics. PoP covers a broad range of important research in this dynamic field, including: -Basic plasma phenomena, waves, instabilities -Nonlinear phenomena, turbulence, transport -Magnetically confined plasmas, heating, confinement -Inertially confined plasmas, high-energy density plasma science, warm dense matter -Ionospheric, solar-system, and astrophysical plasmas -Lasers, particle beams, accelerators, radiation generation -Radiation emission, absorption, and transport -Low-temperature plasmas, plasma applications, plasma sources, sheaths -Dusty plasmas
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