The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized Laser
Within the framework of classical dynamics, the impact of laser amplitude on the cross-collision between a linearly polarized intense laser pulse and a relativistic electron under tight focusing conditions was investigated via numerical simulation. As the laser amplitude intensifies, the z-axis osci...
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2025-04-01
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| author | Junze Shi Junyuan Xu Yizhang Li Gang Yan Youwei Tian |
| author_facet | Junze Shi Junyuan Xu Yizhang Li Gang Yan Youwei Tian |
| author_sort | Junze Shi |
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| description | Within the framework of classical dynamics, the impact of laser amplitude on the cross-collision between a linearly polarized intense laser pulse and a relativistic electron under tight focusing conditions was investigated via numerical simulation. As the laser amplitude intensifies, the z-axis oscillation trajectory of the electron elongates. The spatial radiation angular distribution of the electron transforms from a “hill shape” to a “comet shape”, and the radiation peak shifts toward the direction of smaller polar angle, with the radiation concentrating in the forward position. The time spectrum is symmetrical; the number of peaks is reduced from multiple peaks to three peaks; and the relative height of the main peak and secondary peaks increases, with the time distribution gradually concentrating, which can be regarded as an ultrashort attosecond single pulse. The spectrum exhibits a multi-peak distribution trend. When the laser amplitude is relatively strong, radiation with a more concentrated frequency range and better quality can be output. The above research findings are beneficial for generating X-rays of higher quality and can be applied in fields such as biomedicine and atomic physics. |
| format | Article |
| id | doaj-art-b8b9d37fa26d466483ba359ccf6b19a0 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj-art-b8b9d37fa26d466483ba359ccf6b19a02025-08-20T03:52:56ZengMDPI AGApplied Sciences2076-34172025-04-01159497410.3390/app15094974The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized LaserJunze Shi0Junyuan Xu1Yizhang Li2Gang Yan3Youwei Tian4Bell Honors School, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaCollege of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaPortland Institute, 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, ChinaWithin the framework of classical dynamics, the impact of laser amplitude on the cross-collision between a linearly polarized intense laser pulse and a relativistic electron under tight focusing conditions was investigated via numerical simulation. As the laser amplitude intensifies, the z-axis oscillation trajectory of the electron elongates. The spatial radiation angular distribution of the electron transforms from a “hill shape” to a “comet shape”, and the radiation peak shifts toward the direction of smaller polar angle, with the radiation concentrating in the forward position. The time spectrum is symmetrical; the number of peaks is reduced from multiple peaks to three peaks; and the relative height of the main peak and secondary peaks increases, with the time distribution gradually concentrating, which can be regarded as an ultrashort attosecond single pulse. The spectrum exhibits a multi-peak distribution trend. When the laser amplitude is relatively strong, radiation with a more concentrated frequency range and better quality can be output. The above research findings are beneficial for generating X-rays of higher quality and can be applied in fields such as biomedicine and atomic physics.https://www.mdpi.com/2076-3417/15/9/4974laser opticselectron radiationlaser amplitudelinearly polarized lasernumerical simulation |
| spellingShingle | Junze Shi Junyuan Xu Yizhang Li Gang Yan Youwei Tian The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized Laser Applied Sciences laser optics electron radiation laser amplitude linearly polarized laser numerical simulation |
| title | The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized Laser |
| title_full | The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized Laser |
| title_fullStr | The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized Laser |
| title_full_unstemmed | The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized Laser |
| title_short | The Impact of Laser Amplitude on the Radiation Characteristics of the Cross-Collision Between the Relativistic Electron and the Tightly Focused Linearly Polarized Laser |
| title_sort | impact of laser amplitude on the radiation characteristics of the cross collision between the relativistic electron and the tightly focused linearly polarized laser |
| topic | laser optics electron radiation laser amplitude linearly polarized laser numerical simulation |
| url | https://www.mdpi.com/2076-3417/15/9/4974 |
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