Spectral and ion emission features of laser-produced Sn and SnO 2 plasmas
Spectral and ion emission features of laser-produced Sn and SnO 2 plasmas
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DOI：
10.1088/1674-1056/25/3/035202
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发表时间：
2016-01
影响因子：
1.7
通讯作者：
H. Lan;Xinbei Wang;D. Zuo
中科院分区：
文献类型：
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作者：
H. Lan;Xinbei Wang;D. Zuo
我们已经做了详细的比较的原子和离子碎片，以及在相同的实验条件下的Sn和SnO2等离子体的发射特性。用1.06 μ m，8ns的Nd：YAG激光脉冲辐照纯金属Sn和陶瓷SnO_2平板。快速摄影采用了增强的电荷耦合器件（ICCD），光学发射光谱（OES），和光学飞行时间发射光谱被用作诊断工具。我们的研究结果表明，锡等离子体提供了更高的极紫外（EUV）转换效率（CE）比SnO2等离子体。然而，与SnO2相比，Sn离子的动能相对较低。OES研究表明，Sn等离子体参数（电子温度和密度）低于SnO 2等离子体的参数。此外，还讨论了真空度和激光脉冲能量对等离子体参数的影响。
We have made a detailed comparison of the atomic and ionic debris, as well as the emission features of Sn and SnO2 plasmas under identical experimental conditions. Planar slabs of pure metal Sn and ceramic SnO2 are irradiated with 1.06 μm, 8 ns Nd:YAG laser pulses. Fast photography employing an intensified charge coupled device (ICCD), optical emission spectroscopy (OES), and optical time of flight emission spectroscopy are used as diagnostic tools. Our results show that the Sn plasma provides a higher extreme ultraviolet (EUV) conversion efficiency (CE) than the SnO2 plasma. However, the kinetic energies of Sn ions are relatively low compared with those of SnO2. OES studies show that the Sn plasma parameters (electron temperature and density) are lower compared to those of the SnO2 plasma. Furthermore, we also give the effects of the vacuum degree and the laser pulse energy on the plasma parameters.