Parametric study of a high amplitude electromagnetic pulse driven by an intense laser
Parametric study of a high amplitude electromagnetic pulse driven by an intense laser
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DOI：
10.1063/1.5094871
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发表时间：
2019-07-01
影响因子：
2.2
通讯作者：
Prasad, P.
中科院分区：
文献类型：
--
作者：
Aktan, E.;Ahmed, H.;Prasad, P.
利用质子探测技术研究了强激光与固体相互作用产生的电磁脉冲。改变激光参数，包括能量、脉冲持续时间和强度，以研究对EM脉冲幅度的影响。实验结果表明，电磁脉冲的振幅与入射激光能量和脉冲宽度有关。对于给定的激光能量的最佳脉冲长度被发现是接近100 fs。与行进的EM脉冲的净电荷已被发现是依赖于激光强度，在一个很好的协议与半经验模型。了解电磁脉冲对激光驱动质子束的后加速具有重要意义。
An investigation of the electromagnetic (EM) pulse produced by high intensity laser-solid interactions has been carried out by employing the proton probing technique. Laser parameters including energy, pulse duration, and intensity were varied to investigate the influence on the EM pulse amplitude. The data reveal that the amplitude of the EM pulse depends on the incident laser energy and the pulse duration. The optimum pulse length for a given laser energy is found to be close to 100 fs. The net charge associated with the traveling EM pulse has been found to be dependent on the laser intensity, in a good agreement with a semiempirical model. The understanding of the EM pulse is important for the postacceleration of laser driven proton beams.