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圆偏振周期量级激光脉冲作用下电子辐射的空间分布
引用本文:惠思,唐新晨,武芝慧. 圆偏振周期量级激光脉冲作用下电子辐射的空间分布[J]. 无线互联科技, 2013, 0(5): 78-82
作者姓名:惠思  唐新晨  武芝慧
作者单位:[1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]南京邮电大学自动化学院,江苏南京210003
摘    要:
在电子汤普孙散射的经典理论的基础上,通过理论分析和计算机模拟,研究圆偏振周期量级激光脉冲作用下电子辐射的空间分布特性,提出可能的应用方向。研究发现,在相对论光强下,随着激光强度的增强,电子辐射逐渐增强,能量不断的向辐射中心集中,辐射能量分布的方向性逐渐突出;当改变激光的初相位时,电子辐射的总体方向发生偏移,表现为辐射分布图形的对称平面发生旋转,且旋转角度与激光初相位角改变大小相同。本文所进行的相关探讨基于电子辐射的三维空间立体图,所得到的有关电子谐波辐射的结论,可以为实验和工程上对电子辐射和激光参数测量的相关应用提供参考。

关 键 词:圆偏振  周期量级  电子辐射

Spatial characteristics of emission from electron oscillation driven by circularly polarized femtosecond laser pulses
Si Hui Xinchen Tang Zhihui Wu. Spatial characteristics of emission from electron oscillation driven by circularly polarized femtosecond laser pulses[J]. Wireless Internet Technology, 2013, 0(5): 78-82
Authors:Si Hui Xinchen Tang Zhihui Wu
Affiliation:Si Hui Xinchen Tang Zhihui Wu(1.Communication and information engineering college,Nanjing University of Posts and Telecommunications, Jiangsu Nanjing,210046: 2.College of automation, Nanjing University of Posts and Telecommunications,Jiangsu Nanjing,210046)
Abstract:
Based on the classical Thomson radiation theory, the characteristics of spatial distribution of emission from electron oscillation driven by circularly polarized femtosecond laser pulses have been investigated theoretically and numerically with a single electron model.lt is discovered that the angular distribution is tipped forward more and more with the increase of laser intensity.The scattering radiation also shows many remarkable initial phase-sensitive characteristics.The characteristics can be used to measure the intensity and initial phase of intense few-cycle laser pulse in experiment.
Keywords:circularly polarization  Few-cycle pulse  electron radiation
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