| 双波荡器自由电子激光理论 |
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| 引用本文： | 戴志敏.双波荡器自由电子激光理论[J].中国物理 C,2004,28(7):775-780. |
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| 作者姓名： | 戴志敏 |
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| 作者单位： | 中国科学院上海应用物理研究所 上海201800 |
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| 基金项目： | 中国国家重点基础研究发展计划 ( 2 0 0 2CB713 60 0 )，上海市科学技术委员会 ( 0 2QF14 0 5 9)，中国科学院知识创新工程资助~~ |
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| 摘 要： | 给出了双波荡器自由电子激光器的通用理论.在双波荡器自由电子激光器中,引入了一个周期长度非常接近主波荡器中电子束感应加速振荡周期的附加波荡器.推导出了一套自治方程组描述双波荡器中自由电子激光场演变过程,并分别给出了低增益、高增益和饱和三种情况下的解析解.研究表明,适当选择附加波荡器的参数,可以提高自由电子激光器的增益或转换效率
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| 关 键 词： | 自由电子激光 双波荡器 驱动感应加速器振荡 |
| 收稿时间： | 2003-6-26 |
Theory of a Double-Undulator Free-Electron Laser |
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| Abstract.Theory of a Double-Undulator Free-Electron Laser[J].High Energy Physics and Nuclear Physics,2004,28(7):775-780. |
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| Authors: | Abstract |
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| Abstract: | In this paper, we present a general theory of the double-undulator free-electron laser, in which an additional undulator with period close to the beam electron betatron oscillation period in the main undulator is introduced. A set of self-consistent equations is developed to describe the evolution of the optical wave in this device. The basic nonlinear equations are analyzed in the low-gain regime, the high-gain regime, and the saturation regime, respectively. By properly selecting parameters of the additional undulator, we may enhance the gain or efficiency of the free-electron laser. |
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| Keywords: | free-electron laser double-undulator driven betatron |
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