| 上海深紫外自由电子激光装置中激光与束流的精确同步 |
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| 引用本文： | 刘波,王兴涛,陈建辉,邓海啸,冯超,兰太和,林国强,王东,张猛,张彤.上海深紫外自由电子激光装置中激光与束流的精确同步[J].强激光与粒子束,2013,25(5):1265-1269. |
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| 作者姓名： | 刘波 王兴涛 陈建辉 邓海啸 冯超 兰太和 林国强 王东 张猛 张彤 |
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| 作者单位： | 1.中国科学院 上海应用物理研究所,上海201 800 |
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| 摘 要： | 介绍了一种基于相干辐射测量的激光-电子束同步方法，描述了实现空间及时间同步的基本原理、步骤和细节，并利用这种方法在上海深紫外自由电子激光装置（SDUV-FEL）上实现了电子束与激光之间亚ps量级的精确同步，为基于外种子激光的高增益高次谐波产生（HGHG）、回声型谐波产生（EEHG）和级联HGHG自由电子激光实验奠定了坚实的基础。还利用这种手段对不同条件下的电子束纵向特性进行了测量和分析。
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| 关 键 词： | 自由电子激光 电子束 同步 相干辐射测量 |
| 收稿时间： | 2012-08-05 |
Precise laser-beam synchronization for Shanghai Deep-Ultraviolet Free-Electron Laser |
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| Institution: | 1.Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China |
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| Abstract: | A general laser-beam synchronization method based on coherent radiation measurement is introduced. Fundamental principles and detailed steps to achieve spatial and temporal synchronization are described. Sub-picosecond level synchronization between the seed laser and the electron beam has been achieved with this method at the Shanghai Deep-Ultraviolet Free-Electron Laser (SDUV-FEL) test facility, which lays a solid foundation for seeding experiments such as high-gain harmonic-generation (HGHG), echo-enabled harmonic-generation (EEHG) and cascaded HGHG. Moreover, longitudinal profiles of the electron beam under different conditions are measured and analyzed. |
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