The parameters of stimulated lasing in diffuse discharges formed in mixtures of helium and fluorine in a strongly inhomogeneous electric field are investigated. Lasing is obtained in the visible and VUV spectral regions on the transitions of fluorine atoms and molecules. It is shown that lasing in He – F2 mixtures at a wavelength of 157 nm continues for several half-periods of the discharge current. Due to the homogeneity of the diffuse discharge, the maximum lasing efficiency of the F2 laser is 0.15%, which corresponds to the efficiency of this type of lasers pumped by pre-ionised transverse volume discharges.

中文翻译：

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在由失控电子形成的扩散放电中在氦和氟的混合物中有效产生辐射

研究了在强非均匀电场中由氦和氟的混合物形成的扩散放电中受激激光的参数。激光是在氟原子和分子跃迁的可见光和 VUV 光谱区域中获得的。结果表明，在 He-F2 混合物中以 157 nm 的波长发射激光会持续放电电流的几个半周期。由于扩散放电的均匀性，F2 激光器的最大激光效率为 0.15%，这对应于由预电离横向体积放电泵浦的此类激光器的效率。