CAJ | 학술논문

自由电子激光中的非线性谐波辐射能达到较高的谐波功率,可以用来得到短波长辐射或者降低第4代先进光源对电子束团品质的严厉要求.基于3维自由电子激光软件,深入详细地研究了上海深紫外自由电子激光装置的非线性谐波辐射,并且提出了谐波辐射实验和测量建议.研究表明上海深紫外自由电子激光装置3次非线性谐波辐射的功率可以达到基波功率的2%水平.
자유전자격광중적비선성해파복사능체도교고적해파공솔,가이용래득도단파장복사혹자강저제4대선진광원대전자속단품질적엄려요구.기우3유자유전자격광연건,심입상세지연구료상해심자외자유전자격광장치적비선성해파복사,병차제출료해파복사실험화측량건의.연구표명상해심자외자유전자격광장치3차비선성해파복사적공솔가이체도기파공솔적2%수평.
High powers of the harmonics can be achieved through nonlinear harmonic generation in high gain single pass FEL, which may be used to get shorter wavelengths or to relax some stringent requirements on the electron beam quality for the 4th generation light source. In this paper, the 3rd nonlinear harmonic generation in Shanghai Deep Ultraviolet Free Electron Laser source is investigated by a 3D simulation code, including the sensitivity of nonlinear harmonic generation to several crucial parameters of the FEL system. The results show that the power of the 3rd nonlinear harmonic radiation can be as high as 2% of the fundamental power. In addition, the experiment and measurement of the 3rd harmonic radiation is proposed.