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Enhancement of water-window soft x-ray emission from laser-produced Au plasma under low-pressure nitrogen atmosphere
https://repo.qst.go.jp/records/74852
https://repo.qst.go.jp/records/74852170a921b-0601-4547-b2ae-3acdba401681
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-19 | |||||
| タイトル | ||||||
| タイトル | Enhancement of water-window soft x-ray emission from laser-produced Au plasma under low-pressure nitrogen atmosphere | |||||
| 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 |
John, Christian
× John, Christian× 岸本, 牧× Johzaki, Tomoyuki× Higashiguch, Takeshi× Kakunaka, Noboru× Matsumoto, Yasuhiro× 長谷川, 登× 錦野, 将元× Ejima, Takeo× Sunahara, Atsushi× Endo, Takuma× Kishimoto, Maki× Hasegawa, Noboru× Nishikino, Masaharu |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To generate bright water-window (WW) soft x rays (2.3–4.4 nm), gold slab targets were irradiated with laser pulses (1064 nm, 7 ns, 1 J). Emission spectroscopy showed that the introduction of low-pressure nitrogen enhanced the soft x-ray yield emitted from the laser-produced Au plasma. The intensity of the WW x-ray transported in a 400-Pa N2 atmosphere from the laser-produced plasma increased by 3.8 times over that in vacuum. Considering a strong x-ray absorption, the x-ray yield emitted directly from the Au plasma in the N2 gas was evaluated to be 13 times higher than that in vacuum. Although similar measurements were made for various gases, only N2 gas causes an increase in a soft x-ray yield. The processes leading to this enhancement mechanism were revealed by using hydrodynamic simulation and atomic structure codes. | |||||
| 書誌情報 |
Optics Letters 巻 44, 号 6, p. 1439-1442, 発行日 2019-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0146-9592 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1364/OL.44.001439 | |||||
