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

被引：24

作者：

AlWazzan, RA

Hendron, JM

Morrow, T

机构：

[1] Dept. of Pure and Applied Physics, Queen's University of Belfast, Belfast

来源：

APPLIED SURFACE SCIENCE | 1996年 / 96-8卷

关键词：

D O I：

10.1016/0169-4332(95)00474-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Spectroscopic measurements on plasmas produced by laser ablation of YBa2Cu3O7 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.

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收藏

页码：170 / 174

页数：5

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