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激光触发弱耦合等离子体电离次序光谱分析方法

Laser Trigger Weakly Coupled Plasma Ionization Order with Spectroscopy

李鑫   吕蒙  
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摘要

激光触发产生弱耦合等离子体在超快时间(10~100 fs)内,产生离子的方式和机制一直是人们很难探知和计算的。利用激光电离原子的最基本特性,寻找出产生离子时所有的电离路径,将电离路径中产生X射线的路径标记出来加以研究,再结合弱耦合等离子体环境中原子或离子能级移动的性质,对比和计算相同路径下相同电离结果中存在的不同电离方式,可区分产生相同产物的不同电离次序。这套方法可通过罗列计算并对应所产生的特征X射线光谱来确定10~100 fs内离子的产生过程以及产生机制,电离路径及电离次序。为激光与物质相互作用在超短时间(10~100 fs)内的物理过程研究提供了一种可探测的技术。

Abstract

Laser trigger weakly coupled plasma in the ultrafast time (10-100 fs),modalities and mechanisms to generate ions has been a very difficult problem to ascertain and calculate.Using laser Ionization atoms basic characteristics,find out all the ionization path producing ions which produce ionizing X-ray at the same time,mark and study them.Combined with the nature of the level shift of atoms or ions in the weakly coupling plasma environment.Compare and calculate the method of different ionization which in the same results under the same path.We can distinguish the different ionization order with the same product.A list is given by the calculation and the corresponding characteristic X-ray spectra generated to determine the production process within 10 ~ 100 fs ions as well as mechanisms,ionization path and method of producing ionizing order.Laser-matter interaction physics study provides a detectable technology in short time (10-100 fs).

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中图分类号:N34

DOI:10.13883/j.issn1004-5929.201604013

所属栏目:其它光谱技术及应用

收稿日期:2016-05-22

修改稿日期:2016-06-20

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李鑫:四川大学物理科学与技术学院,成都 610064高能量密度物理及技术教育部重点实验室,成都 610064
吕蒙:四川大学物理科学与技术学院,成都 610064高能量密度物理及技术教育部重点实验室,成都 610064

联系人作者:李鑫(635815389@qq.com)

备注:李鑫(1993-),男,山西人,本科,研究方向: 高能量密度物理。

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引用该论文

LI Xin,LV Meng. Laser Trigger Weakly Coupled Plasma Ionization Order with Spectroscopy[J]. The Journal of Light Scattering, 2016, 28(4): 360-363

李鑫,吕蒙. 激光触发弱耦合等离子体电离次序光谱分析方法[J]. 光散射学报, 2016, 28(4): 360-363

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