Characteristics of Hydrogen Emission in Laser Plasma Induced by Focusing Fundamental Q-sw YAG Laser on Solid Samples
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- Idris Nasrullah
- Department of Fiber Amenity, Faculty of Engineering, Fukui University
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- Kurniawan Hendrik
- Research Center of Maju Makmur Mandiri
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- Lie Tjung Jie
- Research Center of Maju Makmur Mandiri
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- Pardede Marincan
- Department of Electronic Engineering, Faculty of Industrial Technique, University of Pelita Harapan
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- Suyanto Hery
- Department of Physics, Faculty of Mathematics and Natural Sciences, Udayana University
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- Hedwig Rinda
- Hardware Laboratory, Bina Nusantara University
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- Kobayashi Takao
- Department of Fiber Amenity, Faculty of Engineering, Fukui University
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- Kagawa Kiichiro
- Department of Physics, Faculty of Education and Regional Studies, Fukui University
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- Maruyama Tadashi
- Japan Nuclear Cycle Development Institute, International Cooperation and Technology Development Center
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抄録
Hydrogen emission has been studied in laser plasma by focusing a Nd-YAG laser (1,064 nm, 50 mJ, 8 ns) on various types of samples, such as copper plate, zinc plate and glass plate. Several parameters influencing the emission were varied, such as the type of gas (air, nitrogen and helium), gas pressures (ranging from 2 up to 760 Torr) and laser power density. It was found that Hα emission with a narrow spectral width occurs with high efficiency when the laser plasma is produced in the low-pressure region. It was also confirmed that the conventional well-known laser-induced breakdown spectroscopy (LIBS), which usually carried out at atmospheric air pressure, cannot be applied for the analysis of hydrogen as impurity. This specific characteristic of the pressure dependence of hydrogen is interpreted based on our shock wave model, taking account of the fact that the hydrogen mass is extremely light compared to that of the host elements.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 43 (7A), 4221-4228, 2004
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390282681241397120
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- NII論文ID
- 10013317328
- 210000055881
- 130004532407
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- NII書誌ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 7012371
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可