Variable coherence model for free-electron laser pulses

Bartunek, Austin

doi:10.1364/josab.590434

2026-05-01

PRE

Bartunek, Austin *

Sommerfeld, Nils h.

François Mauger

DOI：10.1364/josab.590434

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摘要

En 中文

我们介绍了变量相干性模型（VCM），用于模拟通过自放大自发辐射产生的自由电子激光（FEL）脉冲。基于Pfeifer等人建立的相干性模型[Opt. Lett. 35, 3441 (2010)]，我们表明，通过引入可变相干宽度，可以在保持平均脉冲参数（如带宽）固定的情况下，实现对脉冲特征噪声的连续控制。我们通过VCM脉冲在时间和频率上的强度和子脉冲数量的系统统计分析来展示这一点。特别地，我们分析了子脉冲统计如何受到相干宽度参数的影响。我们在三个不同的FEL参数 regime下进行我们的分析，并展示了VCM可以生成从最大随机性到完全相干范围的脉冲。最后，我们说明了VCM可变相干宽度对吸收模拟的影响。(c) 2026 Optica Publishing Group，根据Optica开放获取出版协议。

Keyword:

MULTIPHOTON IONIZATION

期刊

Journal of the Optical Society of America B-Optical Physics

IF:

1.9

论文数:

255

被引数:

1.4W

机构

louisiana state university system

学者数:

2.3W

论文数: 2.0W

被引数: 15

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