Analysis of unresolved transition arrays in XUV spectral region from highly charged lead ions produced by subnanosecond laser pulse
Analysis of unresolved transition arrays in XUV spectral region from highly charged lead ions produced by subnanosecond laser pulse
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亚纳秒激光脉冲产生的高电荷铅离子在 XUV 光谱区中未解析跃迁阵列的分析
DOI：
10.1016/j.optcom.2016.10.053
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发表时间：
2017-02
影响因子：
2.4
通讯作者：
O'Sullivan Gerry
中科院分区：
文献类型：
--
作者：
Wu Tao;Higashiguchi Takeshi;Li Bowen;Arai Goki;Hara Hiroyuki;Kondo Yoshiki;Miyazaki Takanori;Dinh Thanh-Hung;O'Reilly Fergal;Sokell Emma;O'Sullivan Gerry
采用150 ps，1064 nm Nd：YAG激光器，在3.1× 1013 W/cm ~ 2 ~ 1.4× 1014 W/cm ~ 2的聚焦功率密度范围内，测量了铅（Pb，Z=82）激光等离子体（LPPs）在1.0-7.0 nm波长范围内的软X射线和极紫外（XUV）光谱。应用灵活原子程序（FAC）和科万的原子结构程序套件计算和解释了观测到的铅光谱的辐射性质。光谱中最突出的结构是一个宽的双峰，它是由高电荷态铅离子发射的Δn=0，n=4-4和Δn=1，n=4-5跃迁阵列产生的。利用未分辨跃迁阵列（unresolved transition arrays，UTAs）模型研究了Δn=1，n=4-5跃迁的发射特性.利用本文的计算结果，结合前人的理论预测和实验数据，发现了Pb ~（21+）→ Pb ~（45+）离子的Δn=1，n=4-5跃迁所产生的许多新的光谱特征。
Soft x-ray and extreme ultraviolet (XUV) spectra from lead (Pb, Z=82) laser-produced plasmas (LPPs) were measured in the 1.0–7.0 nm wavelength region employing a 150-ps, 1064-nm Nd:YAG laser with focused power densities in the range from 3.1×1013W/cm2to 1.4×1014W/cm2. The flexible atomic code (FAC) and the Cowan's suite of atomic structure codes were applied to compute and explain the radiation properties of the lead spectra observed. The most prominent structure in the spectra is a broad double peak, which is produced by Δn=0,n=4–4 and Δn=1,n=4–5 transition arrays emitted from highly charged lead ions. The emission characteristics of Δn=1,n=4–5 transitions were investigated by the use of the unresolved transition arrays (UTAs) model. Numerous new spectral features generated by Δn=1,n=4–5 transitions in ions from Pb21+to Pb45+are discerned with the aid of the results from present computations as well as consideration of previous theoretical predictions and experimental data.
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DOI：
10.1088/0953-4075/45/20/205002
发表时间：
2012-10
期刊：
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子：
--
作者：
C. S. Harte;T. Higashiguchi;T. Otsuka;R. D’Arcy;D. Kilbane;G. O’Sullivan
通讯作者：
C. S. Harte;T. Higashiguchi;T. Otsuka;R. D’Arcy;D. Kilbane;G. O’Sullivan
影响因子：
--
作者：
Lester T. Earls;R. A. Sawyer
通讯作者：
Lester T. Earls;R. A. Sawyer
DOI：
10.1364/josab.10.000799
发表时间：
1993-05
影响因子：
1.9
作者：
J. Sugar;V. Kaufman;W. Rowan
通讯作者：
J. Sugar;V. Kaufman;W. Rowan
影响因子：
3.2
作者：
H. Ohashi;T. Higashiguchi;Bowen Li;Yuhei Suzuki;M. Kawasaki;Tatsuhiko Kanehara;Y. Aida;S. Torii;T. Makimura;Weihua Jiang;P. Dunne;G. O’Sullivan;N. Nakamura
通讯作者：
H. Ohashi;T. Higashiguchi;Bowen Li;Yuhei Suzuki;M. Kawasaki;Tatsuhiko Kanehara;Y. Aida;S. Torii;T. Makimura;Weihua Jiang;P. Dunne;G. O’Sullivan;N. Nakamura
影响因子：
18.1
作者：
I. Martinson
通讯作者：
I. Martinson