X-ray emission from CsCl aqueous solutions when irradiated by intense femtosecond laser pulses and its application to time-resolved XAFS measurement of I- in aqueous solution
X-ray emission from CsCl aqueous solutions when irradiated by intense femtosecond laser pulses and its application to time-resolved XAFS measurement of I- in aqueous solution
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DOI：
10.1002/xrs.2404
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发表时间：
2012-07-01
影响因子：
1.2
通讯作者：
Fukumura, Hiroshi
中科院分区：
文献类型：
--
作者：
Hatanaka, Koji;Fukumura, Hiroshi
本文综述了强飞秒激光脉冲辐照空气中电解质水溶液时的X射线发射。首先，当使用碱金属卤化物水溶液如CsCl作为样品时，示出了X射线发射光谱的一些实例。从多光子电离、共振吸收等方面讨论了X射线发射谱与激光强度、溶质原子序数和溶质浓度的关系，并讨论了激光啁啾对X射线发射的影响，以了解单脉冲激光产生的机制。还介绍了预脉冲辐照使X射线强度增加到103104倍的情况，并从预脉冲辐照引起的激光烧蚀的角度讨论了X射线强度增加的机理。最后给出了碘化钾水溶液时间分辨X射线吸收精细谱的初步结果。版权所有（c）2012约翰威利父子有限公司
This paper reviews X-ray emission from electrolyte aqueous solutions when irradiated by intense femtosecond laser pulses in air. First, some examples of X-ray emission spectra were shown when alkali halide aqueous solutions such as CsCl are used as samples. Dependence of X-ray emission spectra on laser intensity, solute atomic numbers, and solute concentrations are discussed on the basis of multiphoton ionization, resonance absorption, and so on. Laser chirp effects on X-ray emission were also discussed for understanding mechanisms occurring during a single laser pulse. X-ray intensity increase up to 103104 times with prepulse irradiation was also introduced, and the mechanism of X-ray intensity increase was discussed from the viewpoint of laser ablation induced by the prepulse irradiation. Finally, preliminary results of time-resolved X-ray absorption fine spectroscopy using potassium iodide aqueous solution were presented. Copyright (c) 2012 John Wiley & Sons, Ltd.