Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulse
We describe an interplay between two injection mechanism of background electrons into an evolving plasma bubble behind an intense laser pulse: one due to the overall bubble expansion, and another due to its periodic undulation. The two mechanisms occur simultaneously when an intense laser pulse prop...
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| 格式: | 文件 |
| 语言: | English |
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IOP Publishing
2023-01-01
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| 丛编: | New Journal of Physics |
| 主题: | |
| 在线阅读: | https://doi.org/10.1088/1367-2630/acbed5 |
| _version_ | 1827871400197619712 |
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| author | Jihoon Kim Tianhong Wang Vladimir Khudik Gennady Shvets |
| author_facet | Jihoon Kim Tianhong Wang Vladimir Khudik Gennady Shvets |
| author_sort | Jihoon Kim |
| collection | DOAJ |
| description | We describe an interplay between two injection mechanism of background electrons into an evolving plasma bubble behind an intense laser pulse: one due to the overall bubble expansion, and another due to its periodic undulation. The two mechanisms occur simultaneously when an intense laser pulse propagating inside a plasma forms a shock-like steepened front. Periodic undulations of the plasma bubble along the laser propagation path can either inhibit or conspire with electron injection due to bubble expansion. We show that carrier-envelope-phase (CEP) controlled plasma bubble undulation induced by the self-steepening laser pulse produces a unique electron injector—expanding phase-controlled undulating bubble (EPUB). The longitudinal structure of the electron bunch injected by the EPUB can be controlled by laser polarization and power, resulting in high-charge (multiple nano-Coulombs) high-current (tens of kilo-amperes) electron beams with ultra-short (femtosecond-scale) temporal structure. Generation of high-energy betatron radiation with polarization- and CEP-controlled energy spectrum and angular distribution is analyzed as a promising application of EPUB-produced beams. |
| first_indexed | 2024-03-12T16:08:58Z |
| format | Article |
| id | doaj.art-da05c2250da34b199f498950f327b6d9 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:08:58Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-da05c2250da34b199f498950f327b6d92023-08-09T14:13:09ZengIOP PublishingNew Journal of Physics1367-26302023-01-0125303300910.1088/1367-2630/acbed5Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulseJihoon Kim0https://orcid.org/0000-0002-4826-238XTianhong Wang1https://orcid.org/0000-0002-5934-8031Vladimir Khudik2Gennady Shvets3Department of Physics, Cornell University , Ithaca, New York 14850, United States of AmericaSchool of Applied and Engineering Physics, Cornell University , Ithaca, NY 14850, United States of AmericaDepartment of Physics and Institute for Fusion Studies, The University of Texas at Austin , Austin, TX 78712, United States of AmericaSchool of Applied and Engineering Physics, Cornell University , Ithaca, NY 14850, United States of AmericaWe describe an interplay between two injection mechanism of background electrons into an evolving plasma bubble behind an intense laser pulse: one due to the overall bubble expansion, and another due to its periodic undulation. The two mechanisms occur simultaneously when an intense laser pulse propagating inside a plasma forms a shock-like steepened front. Periodic undulations of the plasma bubble along the laser propagation path can either inhibit or conspire with electron injection due to bubble expansion. We show that carrier-envelope-phase (CEP) controlled plasma bubble undulation induced by the self-steepening laser pulse produces a unique electron injector—expanding phase-controlled undulating bubble (EPUB). The longitudinal structure of the electron bunch injected by the EPUB can be controlled by laser polarization and power, resulting in high-charge (multiple nano-Coulombs) high-current (tens of kilo-amperes) electron beams with ultra-short (femtosecond-scale) temporal structure. Generation of high-energy betatron radiation with polarization- and CEP-controlled energy spectrum and angular distribution is analyzed as a promising application of EPUB-produced beams.https://doi.org/10.1088/1367-2630/acbed5laser wakefield acceleratorscarrier-envelope-phasex-ray generationplasma physics |
| spellingShingle | Jihoon Kim Tianhong Wang Vladimir Khudik Gennady Shvets Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulse New Journal of Physics laser wakefield accelerators carrier-envelope-phase x-ray generation plasma physics |
| title | Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulse |
| title_full | Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulse |
| title_fullStr | Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulse |
| title_full_unstemmed | Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulse |
| title_short | Polarization and phase control of electron injection and acceleration in the plasma by a self-steepening laser pulse |
| title_sort | polarization and phase control of electron injection and acceleration in the plasma by a self steepening laser pulse |
| topic | laser wakefield accelerators carrier-envelope-phase x-ray generation plasma physics |
| url | https://doi.org/10.1088/1367-2630/acbed5 |
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