The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized Laser
Under the framework of classical electrodynamics, this article investigates the nonlinear Thomson scattering generated by the cross-collision between a tightly focused linearly polarized Gaussian laser pulse and a relativistic electron through numerical simulation and emulation. The oscillation dire...
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MDPI AG
2025-05-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/9/5056 |
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| author | Junze Shi Jiachen Li Yizhang Li Zekai Yu Gang Yan Youwei Tian |
| author_facet | Junze Shi Jiachen Li Yizhang Li Zekai Yu Gang Yan Youwei Tian |
| author_sort | Junze Shi |
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| description | Under the framework of classical electrodynamics, this article investigates the nonlinear Thomson scattering generated by the cross-collision between a tightly focused linearly polarized Gaussian laser pulse and a relativistic electron through numerical simulation and emulation. The oscillation direction and emission angle of the electron’s trajectory are influenced by the beam waist radius and the delay time. The spatial radiation distribution of electrons exhibits a comet-shaped pattern, with the radiation being concentrated in the forward position. This is attributed to the high laser intensity at the focus, resulting in intense electron motion. As the beam waist radius keeps increasing continuously, the maximum radiation polar angle in the spatial distribution decreases. The time spectrum exhibits a symmetrical three-peak structure, with a high secondary peak. Meanwhile, the supercontinuum spectrum gradually transforms into a multi-peak distribution spectrum. In the multi-peak mode, the main peak and the secondary peak will interchange during the increase in the waist radius, generating rays with higher frequencies and energies. The aforementioned research findings reveal a portion of the mechanism of the nonlinear Thomson scattering theory and are beneficial for generating X-rays of higher quality. |
| format | Article |
| id | doaj-art-76a0a88d2b694c548b2dba243b70c357 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-76a0a88d2b694c548b2dba243b70c3572025-08-20T02:59:14ZengMDPI AGApplied Sciences2076-34172025-05-01159505610.3390/app15095056The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized LaserJunze Shi0Jiachen Li1Yizhang Li2Zekai Yu3Gang Yan4Youwei Tian5Bell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaBell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaPortland Institute, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaBell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaCollege of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaCollege of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaUnder the framework of classical electrodynamics, this article investigates the nonlinear Thomson scattering generated by the cross-collision between a tightly focused linearly polarized Gaussian laser pulse and a relativistic electron through numerical simulation and emulation. The oscillation direction and emission angle of the electron’s trajectory are influenced by the beam waist radius and the delay time. The spatial radiation distribution of electrons exhibits a comet-shaped pattern, with the radiation being concentrated in the forward position. This is attributed to the high laser intensity at the focus, resulting in intense electron motion. As the beam waist radius keeps increasing continuously, the maximum radiation polar angle in the spatial distribution decreases. The time spectrum exhibits a symmetrical three-peak structure, with a high secondary peak. Meanwhile, the supercontinuum spectrum gradually transforms into a multi-peak distribution spectrum. In the multi-peak mode, the main peak and the secondary peak will interchange during the increase in the waist radius, generating rays with higher frequencies and energies. The aforementioned research findings reveal a portion of the mechanism of the nonlinear Thomson scattering theory and are beneficial for generating X-rays of higher quality.https://www.mdpi.com/2076-3417/15/9/5056laser opticselectron radiationbeam waist radiuslinearly polarized lasernumerical simulation |
| spellingShingle | Junze Shi Jiachen Li Yizhang Li Zekai Yu Gang Yan Youwei Tian The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized Laser Applied Sciences laser optics electron radiation beam waist radius linearly polarized laser numerical simulation |
| title | The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized Laser |
| title_full | The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized Laser |
| title_fullStr | The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized Laser |
| title_full_unstemmed | The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized Laser |
| title_short | The Impact of the Girdle Waist Radius on the Radiation Characteristics of the Relativistic Electron in Cross-Collision with the Tightly Focused Linearly Polarized Laser |
| title_sort | impact of the girdle waist radius on the radiation characteristics of the relativistic electron in cross collision with the tightly focused linearly polarized laser |
| topic | laser optics electron radiation beam waist radius linearly polarized laser numerical simulation |
| url | https://www.mdpi.com/2076-3417/15/9/5056 |
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