Characteristics of Hydrogen Emission in Laser Plasma Induced by Focusing Fundamental Q-sw YAG Laser on Solid Samples

• Idris Nasrullah

  Department of Fiber Amenity, Faculty of Engineering, Fukui University

• Kurniawan Hendrik

  Research Center of Maju Makmur Mandiri

• Lie Tjung Jie

  Research Center of Maju Makmur Mandiri

• Pardede Marincan

  Department of Electronic Engineering, Faculty of Industrial Technique, University of Pelita Harapan

• Suyanto Hery

  Department of Physics, Faculty of Mathematics and Natural Sciences, Udayana University

• Hedwig Rinda

  Hardware Laboratory, Bina Nusantara University

• Kobayashi Takao

  Department of Fiber Amenity, Faculty of Engineering, Fukui University

• Kagawa Kiichiro

  Department of Physics, Faculty of Education and Regional Studies, Fukui University

• Maruyama Tadashi

  Japan Nuclear Cycle Development Institute, International Cooperation and Technology Development Center

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 H_α 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

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 43 (7A), 4221-4228, 2004

  The Japan Society of Applied Physics

キーワード

• laser-induced plasma
• laser-induced shock wave plasma
• H<SUB>α</SUB> emission
• hydrogen analysis in solid

詳細情報

• CRID: 1390282681241397120
• NII論文ID: 10013317328
• NII論文ID: 210000055881
• NII論文ID: 130004532407
• NII書誌ID: AA10457675
• DOI: 10.1143/jjap.43.4221
• ISSN: 13474065
• ISSN: 00214922
• NDL書誌ID: 7012371
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7012371
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.4221
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.43.4221/pdf
• 本文言語コード: en
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可