Luminous, relativistic, directional electron bunches from an intense laser driven grating plasma
書誌事項
- 公開日
- 2022-10-07
- 資源種別
- journal article
- 権利情報
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- https://creativecommons.org/licenses/by/4.0
- https://creativecommons.org/licenses/by/4.0
- DOI
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- 10.1038/s41598-022-21210-7
- 公開者
- Springer Science and Business Media LLC
説明
<jats:title>Abstract</jats:title><jats:p>Bright, energetic, and directional electron bunches are generated through efficient energy transfer of relativistic intense (~ 10<jats:sup>19</jats:sup> W/cm<jats:sup>2</jats:sup>), 30 femtosecond, 800 nm high contrast laser pulses to grating targets (500 lines/mm and 1000 lines/mm), under surface plasmon resonance (SPR) conditions. Bi-directional relativistic electron bunches (at 40° and 150°) are observed exiting from the 500 lines/mm grating target at the SPR conditions. The surface plasmon excited grating target enhances the electron flux and temperature by factor of 6.0 and 3.6, respectively, compared to that of the plane substrate. Particle-in-Cell simulations indicate that fast electrons are emitted in different directions at different stages of the laser interaction, which are related to the resultant surface magnetic field evolution. This study suggests that the SPR mechanism can be used to generate multiple, bright, ultrafast relativistic electron bunches for a variety of applications.</jats:p>
収録刊行物
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- Scientific Reports
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Scientific Reports 12 (1), 2022-10-07
Springer Science and Business Media LLC
