Dynamics of laser-ablated iron in nitrogen atmosphere

M. Ohkoshi, T. Yoshitake, K. Tsushima

研究成果: Contribution to journalArticle査読

39 被引用数 (Scopus)

抄録

Fast photography with a framing streak camera is applied to investigate the dynamics of ablated Fe particles by a pulsed excimer laser when a nitrogen atmosphere is present. Two stages of expansion are found in the generated plume. The first one starts just after the laser irradiation where the hemispherical and unidirectional plumes are found simultaneously. The dynamics of the unidirectional plume is described by a drag model for 300 ns. The second stage occurs at 300 ns, and the unidirectional plume expands again in agreement with a delayed blast wave model. The thickness distribution of the deposited Fe-N film is well correlated with the change in the plume geometry, then with the nitrogen pressure.

本文言語英語
ページ(範囲)3340-3342
ページ数3
ジャーナルApplied Physics Letters
64
24
DOI
出版ステータス出版済み - 1994
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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