Possible production of cold plasmas through optical-field-induced ionization.
Possible production of cold plasmas through optical-field-induced ionization.
复制标题
通过光场诱导电离可能产生冷等离子体。
DOI：
10.1103/physreva.46.2077
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Burnett
中科院分区：
文献类型：
--
作者：
Rae;Burnett
采用一维模型结合麦克斯韦方程和隧道电离被用来预测的等离子体温度后，通过一个强飞秒激光脉冲通过大气密度的惰性气体。这些计算是相关的一类新的建议重组x射线激光器，使用光场诱导电离产生一个最初的冷等离子体。残余等离子体温度的范围内的相关条件下确定的，并被发现是最小化的短激光脉冲，短波长，和最低的强度与达到所需的电离阶段一致。即使在最佳条件下，预测的温度是显着大于所需的瞬态增益制度的高效率。
A one-dimensional model incorporating Maxwell's equations and tunneling ionization is used to predict the plasma temperature after the passage of an intense femtosecond laser pulse through an atmospheric-density noble gas. These calculations are of relevance to a new class of proposed recombination x-ray lasers that use optical-field-induced ionization to generate an initially cold plasma. The residual plasma temperature is determined under a range of relevant conditions, and is found to be minimized for short laser pulses, short wavelengths, and the lowest intensity consistent with reaching the desired ionization stage. Even under optimum conditions, the predicted temperature is significantly greater than that required for high efficiency in the transient-gain regime.