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Dynamics of moving electron vortices and magnetic ring in laser plasma interaction
https://repo.qst.go.jp/records/84780
https://repo.qst.go.jp/records/847802c14d468-bc79-40de-b45f-64c2c2cd3be1
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-10-06 | |||||
| タイトル | ||||||
| タイトル | Dynamics of moving electron vortices and magnetic ring in laser plasma interaction | |||||
| 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 |
N. Yue, D.
× N. Yue, D.× Chen, M.× F. Geng, P.× H. Yuan, X.× M. Weng, S.× S. Bulanov, S.× Bulanov, Sergey× Mima, K.× Z. M. Sheng× Z. M. Sheng× Bulanov, Sergey |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Moving electron vortices have been observed in laser interaction with non-uniform near-critical-density plasma by multi-dimensional Particle-in-Cell simulations. In two dimensional geometry, there are two vortices with opposite magnetic polarity, moving perpendicularly to the plasma density gradient direction. The field distribution and particle motion composing such a moving structure have been clearly observed in simulations, which explains the vortex motion. Two components of loop currents are formed around each electron vortex, which dominate the vortex motion. The moving velocity can be as large as a 0.2c level, forming relativistic vortices inside the plasma. Laser plasma conditions such as intensity, polarization, density profile, and external magnetic field effects on the vortex motion and evolution are also studied. In three dimensions, the structure appears as an expanding magnetic ring with an internal magnetic field up to 1000 Tesla. Such vortex structures suggest an interesting way of energy (with more than 5% of the laser energy) transportation to ambient plasmas as far as 50 μm away from the laser-plasma interaction region, which may have applications in laser plasma-based inertial confinement fusion and laboratory astrophysics. | |||||
| 書誌情報 |
Physics of Plasmas 巻 28, 号 4, p. 042303, 発行日 2021-10 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1070-664X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/5.0034098 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://aip.scitation.org/doi/10.1063/5.0034098 | |||||
