1. Spatial distributions of x‐ray lasing spectral linewidth and electron density in a lithiumlike silicon plasma
- Author
-
Zhizhan Xu, Peixiang Lu, Pinzhong Fan, Baifei Shen, Zhengquan Zhang, and Shi‐sheng Chen
- Subjects
Electron density ,Active laser medium ,Physics and Astronomy (miscellaneous) ,Silicon ,Chemistry ,chemistry.chemical_element ,Population inversion ,X-ray laser ,symbols.namesake ,Laser linewidth ,Stark effect ,symbols ,Atomic physics ,Lasing threshold - Abstract
The spatial distribution of the spectral linewidth of lithiumlike silicon ions in the 5f‐3d transition line at 88.84 A is presented in this letter, and it shows that Stark broadening is the dominant line‐broadening mechanism for lithiumlike Si11+ ions on recombination x‐ray lasers. Spatial distribution of the electron density of the x‐ray lasing gain medium is calculated using the linear Stark theory, which shows that the electron density is ∼1019/cm3 in the gain region. A large linewidth at the gain peak (i.e., at 450 μm from the target surface) is 0.21 A and the corresponding electron density and population inversion are 2.9×1019/cm3 and 5.5×1016/cm3, respectively.
- Published
- 1992