Bright, directional electron emission from nanowire coated targets under petawatt, femtosecond irradiation
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866913141965717504 |
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| author | Parab, Ameya Ong, Jian Fuh Ionescu, Stefania Dam, Sagar Rakeeb, Sk Habara, Hideaki Keita, Y. Palit, Rudrajyoti Popa, Daniel Sangwan, Deepak Spohr, Klaus Tudor, Lucian Vatcu, Adrian Singh, Prashant Kumar Tanaka, Kazuo A. Kumar, G. Ravindra |
| author_facet | Parab, Ameya Ong, Jian Fuh Ionescu, Stefania Dam, Sagar Rakeeb, Sk Habara, Hideaki Keita, Y. Palit, Rudrajyoti Popa, Daniel Sangwan, Deepak Spohr, Klaus Tudor, Lucian Vatcu, Adrian Singh, Prashant Kumar Tanaka, Kazuo A. Kumar, G. Ravindra |
| contents | Interactions of relativistically intense laser pulses with structured targets have long been explored for controlling energy absorption and particle acceleration. However, at upcoming multi-petawatt laser facilities, the survivability of such nanostructures under realistic temporal contrast conditions remains a key concern. We report an experimental and simulation study of nanowire targets irradiated by the ELI-NP 1-PW laser without a plasma mirror. At the built in, readily available contrast of $10^{-10}$, the nanowires survive the laser pre-pulse and produce a robust enhancement in relativistic electron flux, energy, and directional emission compared to flat targets indicating that at better contrasts they can show similar enhancement at the 10 PW level. These results establish nanowire targets as resilient and reliable tools for relativistic electron manipulation at state of the art facilities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_18668 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Bright, directional electron emission from nanowire coated targets under petawatt, femtosecond irradiation Parab, Ameya Ong, Jian Fuh Ionescu, Stefania Dam, Sagar Rakeeb, Sk Habara, Hideaki Keita, Y. Palit, Rudrajyoti Popa, Daniel Sangwan, Deepak Spohr, Klaus Tudor, Lucian Vatcu, Adrian Singh, Prashant Kumar Tanaka, Kazuo A. Kumar, G. Ravindra Plasma Physics Interactions of relativistically intense laser pulses with structured targets have long been explored for controlling energy absorption and particle acceleration. However, at upcoming multi-petawatt laser facilities, the survivability of such nanostructures under realistic temporal contrast conditions remains a key concern. We report an experimental and simulation study of nanowire targets irradiated by the ELI-NP 1-PW laser without a plasma mirror. At the built in, readily available contrast of $10^{-10}$, the nanowires survive the laser pre-pulse and produce a robust enhancement in relativistic electron flux, energy, and directional emission compared to flat targets indicating that at better contrasts they can show similar enhancement at the 10 PW level. These results establish nanowire targets as resilient and reliable tools for relativistic electron manipulation at state of the art facilities. |
| title | Bright, directional electron emission from nanowire coated targets under petawatt, femtosecond irradiation |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2605.18668 |