Spatially and temporally resolved emission intensities and number densities in low temperature laser-induced plasmas in vacuum and in ambient gases

机译：真空和环境气体中低温激光诱导的等离子体在空间和时间上的分辨发射强度和数量密度

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Spectroscopic measurements on plasmas produced by laser ablation of YBa_2Cu_3O_7 show that the presence of ambient oxygen leads to enhanced local number densities and temperatures at the expanding front of the plasma plume. Enhanced local temperatures (and local excitation rates) are attributed to the increased collisional redistribution of high initial z-directed plume velocities observed via increased spectral line widths in ambient gases.

机译：对由YBa_2Cu_3O_7激光烧蚀产生的等离子体进行的光谱测量表明，环境氧的存在导致等离子体羽膨胀前沿的局部数密度和温度提高。增强的局部温度（和局部激发率）归因于通过增加环境气体中的谱线宽度观察到的高初始z向羽流的碰撞重分布增加。

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《Symposium F: Third International Conference on Laser Ablation (Cola'95) of the 1995 E-Mrs Spring Conference May 22-26, 1995 Strasbourg, France》|1995年|p.170-174|共5页
会议地点 Strasbourg(FR);Strasbourg(FR)
作者
R.A.Al-Wazzan; J.M.Hendron; T.Morrow;
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正文语种 eng
中图分类一般工业技术;
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Spatially and temporally resolved emission intensities and number densities in low temperature laser-induced plasmas in vacuum and in ambient gases

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