Single-Pulse Underwater Laser-Induced Breakdown Spectroscopy with Nongated Detection Scheme

被引：40

作者：

Matsumoto, Ayumu ^{[1
]}

Tamura, Ayaka ^{[1
]}

Fukami, Kazuhiro ^{[1
]}

Ogata, Yukio H. ^{[1
]}

Sakka, Tetsuo ^{[2
]}

机构：

[1] Kyoto Univ, Inst Adv Energy, Uji, Kyoto 6110011, Japan

[2] Kyoto Univ, Grad Sch Engn, Dept Energy & Hydrocarbon Chem, Kyoto 6158510, Japan

来源：

ANALYTICAL CHEMISTRY | 2013年 / 85卷 / 08期

关键词：

ARCHAEOLOGICAL MATERIALS; ELEMENTAL ANALYSIS; CHEMICAL-ANALYSIS; PLASMA; WATER; LIQUIDS; SAMPLES; TARGET; PHASE; LIBS;

D O I：

10.1021/ac400319v

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We investigated spatially resolved emission spectra of Al atoms in a very small (similar to 0.1 mm) laser ablation plasma produced by a single long-pulse (similar to 100 ns) irradiation of an Al target in water. The spectral feature varied considerably, depending on the position to be measured. The density of the plasma periphery was low enough to neglect the self-absorption effect, even when resonance lines were observed. By properly selecting the position, we successfully obtained well-resolved spectral lines even without time-gated detection. This suggests that time-gating is not necessary anymore in the practical applications of underwater laser-induced breakdown spectroscopy when employing spatially resolved detection system.

引用

页码：3807 / 3811

页数：5

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