Analysis of temporal broadening of isolated attosecond pulses induced by periodic Mo/Si multilayer mirrors reflection
Analysis of temporal broadening of isolated attosecond pulses induced by periodic Mo/Si multilayer mirrors reflection
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周期性 Mo/Si 多层镜反射引起的孤立阿秒脉冲时间展宽分析
DOI：
10.1016/j.ijleo.2018.08.076
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发表时间：
2018-12
期刊：
影响因子：
3.1
通讯作者：
Chen Shujing
中科院分区：
文献类型：
--
作者：
Lin Chengyou;Chen Shujing
当使用多层膜反射镜反射阿秒脉冲时，会产生时间展宽效应，使入射阿秒脉冲的持续时间变长。本文分析了周期性Mo/Si多层膜反射引起的孤立阿秒脉冲的时间展宽。为了定量评价脉冲展宽的效果，采用了脉冲展宽系数和脉冲反射系数两个时间参数。通过研究不同双层结构的周期性Mo/Si多层膜反射镜对不同宽度的阿秒脉冲的时间参量，发现宽度较小的阿秒脉冲在周期性Mo/Si多层膜反射镜上反射时，脉冲展宽和能量损失更为严重。另外，双层膜数越多的周期性Mo/Si多层膜反射镜，虽然能提供更高的脉冲反射效率，但对入射的孤立阿秒脉冲，其脉冲展宽也越严重。通过分析周期性多层膜反射镜在入射脉冲光谱区的反射率和色散，证明了周期性Mo/Si多层膜反射镜引起的光谱滤波和色散是导致入射孤立阿秒脉冲展宽的主要原因。研究周期性Mo/Si多层膜反射引起的脉冲展宽，可以加深对周期性多层膜反射脉冲性能的理解，为高性能阿秒多层膜反射镜的设计提供指导。
When using a multilayer mirror to reflect an attosecond pulse, the temporal broadening effect always happens, and enlarges the duration of incident attosecond pulse. In this paper, the temporal broadening of an isolated attosecond pulse induced by a periodic Mo/Si multilayer mirror reflection is analyzed. In order to evaluate the effect of pulse broadening quantitatively, two temporal parameters, the pulse broadening coefficient and the pulse reflection coefficient, are used. By studying two temporal parameters of periodic Mo/Si multilayer mirrors with different bi-layers for incident isolated attosecond pulses with various durations, we find that the incident isolated attosecond pulse with smaller duration suffers from more serious pulse broadening and energy loss, when reflected by a periodic Mo/Si multilayer mirror. In addition, a periodic Mo/Si multilayer mirror with more bi-layers causes more serious pulse broadening for an incident isolated attosecond pulse, even though it can provide larger pulse reflection efficiency. Furthermore, by analyzing of the reflectivity and the dispersion of periodic multilayer mirrors in the spectral region of incident pulses, we demonstrate that the spectrum filtering and dispersion inducing by periodic Mo/Si multilayer mirrors are responsible for the pulse broadening of incident isolated attosecond pulses. The study of pulse broadening induced by periodic Mo/Si multilayer mirrors reflection could improve the understanding of the performances of periodic multilayer mirrors for pulse reflection, and provide a guide for high-performance attosecond multilayer mirrors design.
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影响因子：
1.9
作者：
J. Meekins;R. Cruddace;H. Gursky
通讯作者：
J. Meekins;R. Cruddace;H. Gursky
DOI：
10.1109/cleopr.2007.4391210
发表时间：
2007-08
期刊：
2007 Conference on Lasers and Electro-Optics - Pacific Rim
影响因子：
--
作者：
F. Krausz
通讯作者：
F. Krausz
影响因子：
1.9
作者：
A. Wonisch;U. Neuhäusler;N. Kabachnik;T. Uphues;M. Uiberacker;V. Yakovlev;F. Krausz;M. Drescher;U. Kleineberg;U. Heinzmann
通讯作者：
A. Wonisch;U. Neuhäusler;N. Kabachnik;T. Uphues;M. Uiberacker;V. Yakovlev;F. Krausz;M. Drescher;U. Kleineberg;U. Heinzmann
影响因子：
56.9
作者：
Drescher, M;Hentschel, M;Krausz, F
通讯作者：
Krausz, F
影响因子：
3.1
作者：
Chengyou Lin;Shujing Chen;Da-he Liu
通讯作者：
Chengyou Lin;Shujing Chen;Da-he Liu