摘要
为研制大功率紧凑型太赫兹源,开展了0.22THz大功率太赫兹源的理论设计研究。THz源采用表面波振荡器结构。重点研究了慢波结构对太赫兹源产生信号的影响,并对慢波结构进行了优化。结合二极管参数的选取,对该源结构进行了粒子模拟,结果表明:在馈入电压200kV,电流2900A的条件下,输出信号频率为0.22THz,输出功率为19.5MW,效率约为3.3%。
In order to develop the compact high-power terahertz （THz） source, a 0.22 THz source is designed theoretically by adopting the structure of surface-wave oscillator （SWO）. We focus on the influence of the slow-wave structure （SWS） on resonant frequency and optimization of the SWS. Combined with the choose of diode, the particle-in-cell （PIC） simulation is performed for the source. The results show that the optimum structure can work stably and generate a terahertz signal in the condition of a input voltage of 200 kV, a current of 2900 A, and a guiding magnetic field of 5 T. The resonant frequency of the output signal is about 0.22 THz, and the output power reaches 19.5 MW with its efficiency of about 3.3%.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2013年第6期1489-1493,共5页
High Power Laser and Particle Beams
关键词
太赫兹
表面波振荡器
慢波结构
粒子模拟
terahertz, surface-wave oscillator, slow-wave structure, particle-in-cell simulation
