北京大学高功率相干Terahertz光源设计  

Initial Design of High Power Coherent Terahertz(THz) Source

作　　者：王桂梅[1] 刘初玉[1] 鲁向阳[1] 庄杰佳[1] 赵夔[1] 陈佳洱[1] 

机构地区：[1]北京大学重离子物理研究所重离子物理教育部重点实验室,北京100871

出　　处：《高能物理与核物理》2007年第9期823-825,共3页High Energy Physics and Nuclear Physics

基　　金：国家重点基础研究发展规划项目(2002CB713600);国家自然科学基金(10276001)资助~~

摘　　要：给出北京大学射频超导组拟建的准单色、高平均功率、波长可调的相干THz光源的系统设计该装置是根据相干扭摆器自发辐射原理,采用自主原创的DC-SC超导光阴极注入器提供的高品质电子束经过磁压缩单次通过扭摆器产生0.25—0.5THz之间的光.该装置提供的THz光具有波长连续可调、功率高、相干性好、单色性好、线偏振等特点,为生物、医学、材料科学、通信等领域提供强有力的研究工具.THz radiliation lying in the region between the microwaves and the infrared, with the property of high spatial resolution and low quantum energy, has wide applications. However, lacking of proper THz source has greatly delaying the related THz science and technology development. Peking University plans to construct a facility of THz source using the DC-SC superconducting accelerator. It is based on coherent undulator raditiation. The source has the property of high peak power, high average power, high coherence, high repetition rate and tunable wavelength between 660- 1200μm. The facility will provider a powerful tool for the research of biology, medicine, material, telecommunication and so on. This paper gives a brief description about the design considerations and an estimation on the property of the THz source.

关 键 词：THz光源 相干扭摆器辐射 高功率 射频超导 

分 类 号：O463[机械工程—光学工程]