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Breakdown of argon by a train of high-repetition long-wave-infrared pulses from a free-electron laser oscillator
https://repo.qst.go.jp/records/2001222
https://repo.qst.go.jp/records/20012226c430ff7-9fe8-45b9-9aa0-0b4a6909fa27
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2024-06-14 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Breakdown of argon by a train of high-repetition long-wave-infrared pulses from a free-electron laser oscillator | |||||||||||||||
| 言語 | en | |||||||||||||||
| 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 | |||||||||||||||
| 著者 |
Hajima Ryoichi
× Hajima Ryoichi
× Kawase Keigo
× James Kevin Koga
× Heishun Zen
× Hideaki Ohgaki
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | This study presents an experimental demonstration of laser-induced breakdown in argon, employing a free-electron laser with a wavelength of 10 um and a repetition rate of 2.856$~GHz.Despite the fluence of individual laser pulses being an order of magnitude smaller than the breakdown threshold, cascade ionization developed in the pulse train, leading to breakdown. The breakdown probability within a finite pulse train increases with gas pressure, and it was notably enhanced in a gas chamber with poor cleanliness. Numerical simulations of cascade ionization accurately replicated the experimental results. The simulation revealed that breakdown phenomena are governed by the balance between avalanche multiplication of electrons within laser pulses and electron diffusion during pulse intervals. |
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| 書誌情報 |
Optics Express 巻 32, 号 13, p. 22722-22737, 発行日 2024-06 |
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| 出版者 | ||||||||||||||||
| 出版者 | OPTICA | |||||||||||||||
| DOI | ||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | 10.1364/OE.524887 | |||||||||||||||
