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Enhancement of molecular formation in fiber-optic laser ablation with a long nanosecond pulsed laser
https://repo.qst.go.jp/records/75520
https://repo.qst.go.jp/records/7552011b85d4e-00fd-452f-8679-fbeae951c97d
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-04-01 | |||||
| タイトル | ||||||
| タイトル | Enhancement of molecular formation in fiber-optic laser ablation with a long nanosecond pulsed laser | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Matsumoto, Ayumu
× Matsumoto, Ayumu× 大場, 弘則× Toshimitsu, Masaaki× Akaoka, Katsuaki× Ruas, Alexandre× Wakaida, Ikuo× Sakka, Tetsuo× Yae, Shinji× Oba, Hironori |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Fiber-optic laser-induced breakdown spectroscopy (LIBS) can be used for on-site chemical analysis in harsh environments with a flexible light delivery system. In this work, the use of a long-pulse laser (100 ns) is proposed for the detection of molecular emission signals, instead of a normal-pulse laser (6 ns). We show a significant enhancement of AlO signals using an aluminum metal target in air. We also elucidate the enhancement mechanism of the AlO formation by measuring species-specific images of the emission from aluminum atoms, oxygen atoms, and AlO molecules in the plasma. The internal structure of the plasma suggests that the formation origin of AlO molecules in the long-pulse-produced plasma is essentially different from that in the normal-pulse-produced plasma. The long-pulse laser causes a rise of the ablation plume and facilitates the flow of oxygen from the ambient air. This is a key factor to enhance the molecular emission signals. | |||||
| 書誌情報 |
Spectrochimica Acta Part B 巻 155, p. 56-60, 発行日 2019-04 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0584-8547 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.sab.2019.03.009 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/abs/pii/S0584854719300151?via%3Dihub | |||||
