High-flux bright x-ray source from femtosecond laser-irradiated microtapes
Abstract Betatron x-ray sources from laser-plasma interaction are characterized by compactness, ultrashort duration, broadband spectrum and micron source size. However, high-quality measurements with good statistics, especially in a single shot, require fluxes and energies beyond the current capabil...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-03-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-024-01575-z |
| _version_ | 1797266778634584064 |
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| author | Xiaofei Shen Alexander Pukhov Bin Qiao |
| author_facet | Xiaofei Shen Alexander Pukhov Bin Qiao |
| author_sort | Xiaofei Shen |
| collection | DOAJ |
| description | Abstract Betatron x-ray sources from laser-plasma interaction are characterized by compactness, ultrashort duration, broadband spectrum and micron source size. However, high-quality measurements with good statistics, especially in a single shot, require fluxes and energies beyond the current capabilities. Here, we propose a method to enhance the flux and brightness of the betatron sources without increasing the laser energy. By irradiating an edge of a microtape target with a femtosecond laser, a strong surface plasma wave (SPW) is excited at the edge and travels along the lateral plasma-vacuum interfaces. Tens of nC of electrons are peeled off and accelerated to superponderomotive energies by the longitudinal field of the SPW, whilst undergoing transverse betatron oscillations, leading to emission of hard x-rays. Via three-dimensional particle-in-cell simulations, we demonstrate that a tabletop 100 TW class femtosecond laser can produce an ultrabright hard x-ray pulse with flux up to 107 photons eV−1 and brilliance about 1023 photons s−1 mm−2 mrad−2 0.1%BW−1, paving the way for single-shot x-ray measurements in ultrafast science and high-energy-density physics. |
| first_indexed | 2024-04-25T01:06:06Z |
| format | Article |
| id | doaj.art-8b23a222c2be4bd8828fa51644373b6f |
| institution | Directory Open Access Journal |
| issn | 2399-3650 |
| language | English |
| last_indexed | 2024-04-25T01:06:06Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj.art-8b23a222c2be4bd8828fa51644373b6f2024-03-10T12:14:25ZengNature PortfolioCommunications Physics2399-36502024-03-01711910.1038/s42005-024-01575-zHigh-flux bright x-ray source from femtosecond laser-irradiated microtapesXiaofei Shen0Alexander Pukhov1Bin Qiao2Institut für Theoretische Physik I, Heinrich-Heine-Universität DüsseldorfInstitut für Theoretische Physik I, Heinrich-Heine-Universität DüsseldorfCenter for Applied Physics and Technology, HEDPS, SKLNP, and School of Physics, Peking UniversityAbstract Betatron x-ray sources from laser-plasma interaction are characterized by compactness, ultrashort duration, broadband spectrum and micron source size. However, high-quality measurements with good statistics, especially in a single shot, require fluxes and energies beyond the current capabilities. Here, we propose a method to enhance the flux and brightness of the betatron sources without increasing the laser energy. By irradiating an edge of a microtape target with a femtosecond laser, a strong surface plasma wave (SPW) is excited at the edge and travels along the lateral plasma-vacuum interfaces. Tens of nC of electrons are peeled off and accelerated to superponderomotive energies by the longitudinal field of the SPW, whilst undergoing transverse betatron oscillations, leading to emission of hard x-rays. Via three-dimensional particle-in-cell simulations, we demonstrate that a tabletop 100 TW class femtosecond laser can produce an ultrabright hard x-ray pulse with flux up to 107 photons eV−1 and brilliance about 1023 photons s−1 mm−2 mrad−2 0.1%BW−1, paving the way for single-shot x-ray measurements in ultrafast science and high-energy-density physics.https://doi.org/10.1038/s42005-024-01575-z |
| spellingShingle | Xiaofei Shen Alexander Pukhov Bin Qiao High-flux bright x-ray source from femtosecond laser-irradiated microtapes Communications Physics |
| title | High-flux bright x-ray source from femtosecond laser-irradiated microtapes |
| title_full | High-flux bright x-ray source from femtosecond laser-irradiated microtapes |
| title_fullStr | High-flux bright x-ray source from femtosecond laser-irradiated microtapes |
| title_full_unstemmed | High-flux bright x-ray source from femtosecond laser-irradiated microtapes |
| title_short | High-flux bright x-ray source from femtosecond laser-irradiated microtapes |
| title_sort | high flux bright x ray source from femtosecond laser irradiated microtapes |
| url | https://doi.org/10.1038/s42005-024-01575-z |
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