| 交叉型波荡器软X射线自由电子激光极化控制的影响因素 |
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| 引用本文： | 耿会平,贾启卡,李和廷.交叉型波荡器软X射线自由电子激光极化控制的影响因素[J].强激光与粒子束,2011,23(3). |
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| 作者姓名： | 耿会平 贾启卡 李和廷 |
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| 作者单位： | 中国科学技术大学 国家同步辐射实验室， 合肥 230029 |
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| 摘 要： | 交叉型波荡器是一种实现软X射线自由电子激光极化控制的有效方式。以自放大自发辐射自由光电子激光为例，采用统计的方法系统地分析了交叉型波荡器软X射线自由电子激光极化控制的影响因素。通过对光场相干长度、光脉冲两分量之间相对滑移长度和光场分量平均功率差异等的分析，给出了优化交叉型波荡器极化控制方案遵循的原则，即：辐射场相干时间尽可能长，光场分量相对滑移长度尽可能短，辐射场分量功率差异尽可能小等。该原则为交叉型波荡器软X射线自由电子激光极化控制方案的优化提供了依据。
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| 关 键 词： | 交叉型波荡器 软X射线自由电子激光 极化控制 |
| 收稿时间： | 1900-01-01; |
Factors influencing polarization control with crossed undulator in soft X-ray free electron lasers |
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| Geng Huiping,Jia Qika,Li Heting.Factors influencing polarization control with crossed undulator in soft X-ray free electron lasers[J].High Power Laser and Particle Beams,2011,23(3). |
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| Authors: | Geng Huiping Jia Qika Li Heting |
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| Institution: | National Synchrotron Radiation Laboratory, University of Science and Technology of China, P. O. Box 6022, Hefei 230029, China |
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| Abstract: | The crossed undulator is an effective method for polarization control in soft x-ray free electron lasers(FELs).Influencing factors were statistically analyzed for polarization control with a crossed undulator in self-amplified spontaneous(SASE) FELs.The effects of the coherence length of radiation,and the relative slippage length and power difference of the two field components were analyzed,and the principles for optimizing an polarization control scheme with a crossed undulator were proposed.These princip... |
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| Keywords: | crossed undulator soft X-ray free electron lasers polarization control |
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