Observation of vacuum-ultraviolet Ar2* radiation gain at 126 nm produced by an ultrashort high-intensity laser pulse propagating in a hollow fiber.
Observation of vacuum-ultraviolet Ar2* radiation gain at 126 nm produced by an ultrashort high-intensity laser pulse propagating in a hollow fiber.
复制标题
观察超短高强度激光脉冲在中空光纤中传播所产生的 126 nm 真空紫外 Ar2* 辐射增益。
DOI：
10.1364/ol.28.000804
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发表时间：
2003
期刊：
影响因子：
3.6
通讯作者：
W. Sasaki
中科院分区：
文献类型：
--
作者：
M. Kaku;T. Higashiguchi;S. Kubodera;W. Sasaki
利用空心光纤引导高强度激光在高压Ar中传输，观察到Ar ~（2 *）发射126 nm的小信号增益。在126 nm处测得小信号增益系数为0.05 cm（-1）。动力学分析表明，高强度激光通过光场诱导电离过程产生的电子启动了Ar 2 * 的产生过程。随着光纤长度的增加，发射强度的增加被测量为exp（2.5）。
We observed a small-signal gain of Ar2* emission at 126 nm by use of a hollow fiber to guide the high-intensity laser propagation in high-pressure Ar. The small-signal gain coefficient was measured to be 0.05 cm(-1) at 126 nm. Kinetic analysis revealed that the electrons produced by the high-intensity laser through an optical-field-induced ionization process initiated the Ar2* production processes. The increase in the emission intensity was measured to be exp(2.5), with an increase in the fiber length.