Emission intensity modulation of radio-frequency helium glow-discharge emission source by laser ablation

被引：5

作者：

Matsuta, H ^{[1
]}

Naeem, TM ^{[1
]}

Wagatsuma, K ^{[1
]}

机构：

[1] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

来源：

ANALYTICAL SCIENCES | 2003年 / 19卷 / 06期

关键词：

D O I：

10.2116/analsci.19.813

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel emission excitation source comprising a high repetition rate diode-pumped Q-switched Nd:YAG laser and a Grimm-style glow-discharge lamp is described. Laser-ablated atoms are introduced into the He glow discharge plasma, which then give emission signals. By using phase-sensitive detection with a lock-in amplifier, the emission signal modulated by the pulsed laser can be detected selectively. It is possible to estimate only the emission intensity of sample atoms ablated by laser irradiation with little interference from the other species in the plasma.

引用

页码：813 / 814

页数：2

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