中物院太赫兹自由电子激光:设计、运行及升级  

CAEP Terahertz Free Electron Laser: Design, Operation and Upgradation

作　　者：周征 李鹏[1] 周奎 肖德鑫[1] 王建新[1] 王汉斌[1] 罗星 单李军 沈旭明 和天慧 劳成龙 闫陇刚 张鹏[1] 陈立均 刘宇[1] 刘婕 杨兴繁[1] 吴岱[1] 黎明[1] ZHOU Zheng;LI Peng;ZHOU Kui;XIAO De-xin;WANG Jian-xin;WANG Han-bin;LUO Xing;SHAN Li-jun;SHEN Xu-ming;HE Tian-hui;LAO Cheng-long;YAN Long-gang;ZHANG Peng;CHEN Li-jun;LIU Yu;LIU Jie;YANG Xing-fan;WU Dai;LI Ming(China Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《真空电子技术》2022年第1期14-18,共5页Vacuum Electronics

摘　　要：中物院太赫兹自由电子激光(CTFEL)装置是我国第一台基于超导加速器的高重复频率、高平均功率太赫兹自由电子激光装置。CTFEL利用光阴极直流高压电子枪和超导加速器产生约8 MeV电子束在波荡器中产生自发太赫兹(THz)辐射,并在光腔中受激放大获得饱和输出。得益于在0.7~4.2 THz频谱范围内连续可调以及平均功率大于10 W的特性,CTFEL为材料动力学、太赫兹成像、太赫兹生物学等领域提供了独特的研究平台。自2018年开放成为用户装置以来,每年提供不少于1000 h的稳定出光。未来CTFEL将在现有基础上升级成为红外太赫兹自由电子激光装置,实现太赫兹频率全覆盖以及最大功率大于100 W的目标,力争成为世界先进的长波长自由电子激光装置。CAEP Terahertz Free Electron Laser(CTFEL) is the first super-conducting linac based high repetition rate, high average power terahertz free electron laser in China. The CTFEL uses ~8 MeV electron beams generated by DC photoemission gun and super-conducting linac transversing an undulator to produce spontaneous THz radiation, which is amplified in an optical resonator to obtain saturated output. Due to its continuous tunability in a wide range of 0.7~4.2 THz and average power of >10 W, the CTFEL has provided a unique research platform for material dynamics, THz imaging, terahertz biology and so on. Since listed as a user facility in 2018, the CTFEL has provided stable THz radiation for 1000 hours each year. The CTFEL will soon be upgraded to infrared-terahertz free electron laser facility, which is aimed to cover the whole THz spectrum of 0.1~125 THz and have maximum average power of >100 W.

关 键 词：太赫兹 自由电子激光 高功率 超导加速器 电子束 波荡器 

分 类 号：TN248.6[电子电信—物理电子学]