A kinetic theory approach to second harmonic generation by high power laser in magnetized plasma with nonextensive distribution

3区物理与天体物理 Q1 Engineering

Waves in Random and Complex Media Pub Date : 2023-10-17 DOI:10.1080/17455030.2023.2268754

S. Shabani, T. Mohsenpour, A. Ghadi

引用次数: 0

Abstract

AbstractThe present study presents a kinetic theory approach to second-harmonic generation (SHG) through high-power laser in collisionless plasma with nonextensively-distributed electrons. The study applied a relativistic Vlasov equation to obtain nonlinear current density and second-harmonic (SH) conversion efficiency. It was observed that the power conversion efficiency (PCE) of second-harmonic generation depends on plasma and laser parameters such as dimensionless cyclotron frequency, plasma density, normalized thermal velocity, the nonextensive q-parameter, and laser intensity. Moreover, cyclotron frequency associated with plasma electrons has been found to play an important role in increasing the power conversion efficiency of SH generation.KEYWORDS: Kinetic theorySelf-focusingSH generationVlasov equationPower conversion efficiency Disclosure statementNo potential conflict of interest was reported by the author(s).

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高功率激光在非宽分布磁化等离子体中产生二次谐波的动力学方法

摘要本文提出了用动力学理论研究高功率激光在非广泛分布电子的无碰撞等离子体中产生二次谐波的方法。本文应用相对论性Vlasov方程计算了非线性电流密度和二次谐波转换效率。结果表明，二次谐波产生的功率转换效率(PCE)取决于等离子体和激光参数，如无量纲回旋频率、等离子体密度、归一化热速度、非扩展q参数和激光强度。此外，与等离子体电子相关的回旋加速器频率在提高SH发电的功率转换效率方面起着重要作用。关键词:动力学理论自聚焦sh生成弗拉索夫方程功率转换效率披露声明作者未报告潜在利益冲突。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Waves in Random and Complex Media 物理-物理：综合

自引率

0.00%

发文量

677

审稿时长

3.0 months

期刊介绍： Waves in Random and Complex Media (formerly Waves in Random Media ) is a broad, interdisciplinary journal that reports theoretical, applied and experimental research related to any wave phenomena. The field of wave phenomena is all-pervading, fast-moving and exciting; more and more, researchers are looking for a journal which addresses the understanding of wave-matter interactions in increasingly complex natural and engineered media. With its foundations in the scattering and propagation community, Waves in Random and Complex Media is becoming a key forum for research in both established fields such as imaging through turbulence, as well as emerging fields such as metamaterials. The Journal is of interest to scientists and engineers working in the field of wave propagation, scattering and imaging in random or complex media. Papers on theoretical developments, experimental results and analytical/numerical studies are considered for publication, as are deterministic problems when also linked to random or complex media. Papers are expected to report original work, and must be comprehensible and of general interest to the broad community working with wave phenomena.