Conversion of Intense Laser Pulses to Electromagnetic Fields of Terahertz and Sub-Terahertz Ranges Using Extended Targets

IF 0.8 4区地球科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Radiophysics and Quantum Electronics Pub Date : 2026-02-13 DOI:10.1007/s11141-026-10453-3

N. D. Bukharskii, Ph. A. Korneev

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Abstract

We consider effects leading to the generation of quasi-stationary fields and radiation of electro-magnetic waves during the propagation of an optically excited discharge pulse in extended targets. The results of numerical simulation are presented for the interaction of an ultrashort laser pulse of relativistic intensity with an extended dense target and for the transformation of this pulse into a powerful discharge current pulse. It is shown that, under certain conditions, such a pulse can be used to generate strong electromagnetic fields with specified spatiotemporal properties. Particular attention is paid to the influence of parameters of the discharge pulse on the properties of the induced electromagnetic fields. Analysis of the discharge-pulse profile as a function of the target thickness is provided and the dynamics of the evolution of the discharge-pulse profile on a time scale of about ∼ 10 ps, when the distance traveled by the pulse along an extended target is of the order of 3 mm, is studied.

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利用扩展目标将强激光脉冲转换为太赫兹和次太赫兹范围的电磁场

我们考虑了光激发放电脉冲在扩展目标中传播过程中导致准平稳场和电磁波辐射产生的影响。本文给出了相对论强度的超短激光脉冲与扩展致密靶的相互作用，以及该脉冲转化为强放电电流脉冲的数值模拟结果。结果表明，在一定条件下，这种脉冲可以产生具有特定时空特性的强电磁场。重点研究了放电脉冲参数对感应电磁场特性的影响。本文分析了放电脉冲剖面作为目标厚度的函数，并研究了当脉冲沿扩展目标行进的距离为3 mm时，放电脉冲剖面在约10 ps的时间尺度上的演化动力学。

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

Radiophysics and Quantum Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-PHYSICS, APPLIED

CiteScore

1.10

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as: Radio astronomy; Plasma astrophysics; Ionospheric, atmospheric and oceanic physics; Radiowave propagation; Quantum radiophysics; Pphysics of oscillations and waves; Physics of plasmas; Statistical radiophysics; Electrodynamics; Vacuum and plasma electronics; Acoustics; Solid-state electronics. Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April. All articles are peer-reviewed.