109 nm波长自由电子激光中自放大自发发射的首次观测
First Observation of Self-Amplified Spontaneous Emission in a Free-Electron Laser at 109 nm Wavelength
摘要：
本文首次在真空紫外波段的自由电子激光（FEL）中观测到109 nm波长（11 eV）的自放大自发发射（SASE）。观察到的自由电子激光增益（约为1.5dB）。3000）和辐射特性，如对束团电荷的依赖性、角分布、谱宽和强度起伏都证实了SASE自由电子激光的现有模型。
英文摘要：
We present the first observation of Self-Amplified Spontaneous Emission (SASE) in a free-electron laser (FEL) in the Vacuum Ultraviolet regime at 109 nm wavelength (11 eV). The observed free-electron laser gain (approx. 3000) and the radiation characteristics, such as dependency on bunch charge, angular distribution, spectral width and intensity fluctuations all corroborate the existing models for SASE FELs.
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