Observation of continuum optical emission from laser-ablation carbon plumes

被引:16
作者
Sasaki, K [1 ]
Wakasaki, T [1 ]
Kadota, K [1 ]
机构
[1] Nagoya Univ, Dept Elect, Nagoya, Aichi 4648603, Japan
关键词
continuum emission; carbon clusters; laser ablation of graphite; optical emission imaging spectroscopy;
D O I
10.1016/S0169-4332(02)00358-6
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
We observed continuum optical emission from carbon plumes produced by laser ablation of a graphite target. Two types of continuum emission were observed: a spiky emission just after the irradiation of the laser pulse and a delayed component observed in ambient He gas. It was shown by optical emission imaging spectroscopy and laser-induced fluorescence (LIF) imaging spectroscopy that the delayed continuum emission grew in the region where the loss of C-2 was significant. This result suggests that the delayed continuum emission is originated from clustering reactions among carbon species in the plume. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码:197 / 201
页数:5
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