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紧聚焦的超短超强激光脉冲在真空中加速斜入射的相对论电子

Electron capture and violent acceleration by a tightly focused ultra-short ultra-intense laser pulse in vacuum

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【Author】 Tian You-Wei 1) Yu Wei 1) Lu Pei-Xiang 2)1) He Feng 1) Ma Fa-Jun 1) Xu Han 1) Jing Guo-Liang 3) Qian Lie-Jia 4) 1) (Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanism, Chinese Academy of Sciences, Shanghai 201800, China) 2) (State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhuan 430070, China) 3) (Department of Physics, China University of Mining & Technology, Beijing 100083, China) 4) (Fudan University, Shanghai 200433, China)

【机构】中国科学院上海光学精密机械研究所强光光学实验室；激光技术国家重点实验室；华中科技大学；中国矿业大学(北京校区)；复旦大学上海201800；上海201800；武汉430070；北京100083；上海200433；

【摘要】研究了紧聚焦的线偏振飞秒超强高斯激光脉冲俘获并剧烈加速斜入射低能相对论电子的效应,发现被俘获的电子在激光脉冲纵向有质动力的强大加速作用下,可以获得GeV量级的能量,并详细研究了入射电子的初能量、斜入射角、电子与激光脉冲的相对延迟时间和激光脉冲宽度等条件对电子能量增益的影响,发现当激光脉宽超过10λ时,脉宽对电子能量增益影响不大.更多还原

【Abstract】 A low-energy relativistic free electron capture and violently acceleration by a tightly focused ultra-short ultra-intense laser pulse in vacuum is presented in this paper. The results show that the electron is mainly accelerated by the longitudinal ponderomotive force and the energy gain is sensitively dependent on the retarded time, initial energy and the incident angle of electron. On the other hand, the energy gain is not very sensitive to the pulse width when it is larger than 10λ.更多还原

【关键词】电子加速；有质动力；能量增益；束腰；
【Key words】 electron acceleration； pondermotive force； energy gain； beam waist；

【基金】国家自然科学基金(批准号:10375083);国家重点基础研究专项基金(批准号:TG1999075206_2)资助的课题.~~

【文献出处】物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,2005年09期

【分类号】TN24
【被引频次】6
【下载频次】161

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