Generation of isolated attosecond electron bunches by the diffraction of a polarization-tailored intense laser beam
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910368269336576 |
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| author | Hu, Ke Yi, Longqing |
| author_facet | Hu, Ke Yi, Longqing |
| contents | We propose utilizing a polarization-tailored high-power laser pulse to extract and accelerate electrons from the edge of a solid foil target to produce isolated attosecond electron bunches. The laser pulse consists of two orthogonally-polarized components with a time delay comparable to the pulse duration, such that the polarization in the middle of the pulse rapidly rotates over 90$^\circ$ within few optical cycles. Three-dimensional (3D) Particle-in-Cell simulations show that when such a light pulse diffracts at the edge of a plasma foil, a series of isolated relativistic electron bunches are emitted into separated azimuthal angles determined by the varying polarization. In comparison with most other methods that require an ultra-short drive laser, we show the proposed scheme works well with typical multi-cycle ($\sim 30~$fs) pulses from high-power laser facilities. The generated electron bunches have typical durations of a few hundred attoseconds and charges of tens of picocoulombs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_10017 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Generation of isolated attosecond electron bunches by the diffraction of a polarization-tailored intense laser beam Hu, Ke Yi, Longqing Plasma Physics We propose utilizing a polarization-tailored high-power laser pulse to extract and accelerate electrons from the edge of a solid foil target to produce isolated attosecond electron bunches. The laser pulse consists of two orthogonally-polarized components with a time delay comparable to the pulse duration, such that the polarization in the middle of the pulse rapidly rotates over 90$^\circ$ within few optical cycles. Three-dimensional (3D) Particle-in-Cell simulations show that when such a light pulse diffracts at the edge of a plasma foil, a series of isolated relativistic electron bunches are emitted into separated azimuthal angles determined by the varying polarization. In comparison with most other methods that require an ultra-short drive laser, we show the proposed scheme works well with typical multi-cycle ($\sim 30~$fs) pulses from high-power laser facilities. The generated electron bunches have typical durations of a few hundred attoseconds and charges of tens of picocoulombs. |
| title | Generation of isolated attosecond electron bunches by the diffraction of a polarization-tailored intense laser beam |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2403.10017 |