Multi-color resonance ionization of laser ablated gadolinium at high laser power

被引:11
作者
Maul, J
Eberhardt, K
Huber, G
Karpuk, S
Passler, G
Roca-Saiz, MC
Strachnov, I
Trautmann, N
Wendt, K
机构
[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
[2] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55099 Mainz, Germany
关键词
laser ablation; resonance ionization spectroscopy; MALDI-TOF;
D O I
10.1016/j.optcom.2005.06.088
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Spectroscopic and analytical properties of a trace analytical method using multi-step resonance ionization at high laser intensities (>kW/cm(2)) have been investigated with gadolinium as it test element. Strongly saturated transitions are observed, which have been used for a temperature determination of the atoms in the laser ablated plume. Regimes of multi-step resonance ionization and multiphoton ionization Could be distinguished, Analytical performances due to resonance enhancement and resulting discrimination against non-resonant background, precision in isotope ratio determination and overall detection efficiency are discussed. (c) 2005 Published by Elsevier B.V.
引用
收藏
页码:364 / 372
页数:9
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