Emission Intensity Modulation of Radio-Frequency Helium Glow-Discharge Emission Source by Laser Ablation

被引：0
|
作者：
Hideyuki Matsuta
Tariq M. Naeem
Kazuaki Wagatsuma
机构：
[1] Tohoku University,Institute for Materials Research
来源：
Analytical Sciences | 2003年 / 19卷
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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.
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页码：813 / 814
页数：1
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