Author(s)

Wessameldin S. Abdelaziz¹, Th. M. El Sherbeni², Nahed H. Wahba¹

¹National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt.
²Laser and New Materials Laboratory, Physics Department, Faculty of Science, Cairo University, Giza, Egypt.

Energy levels, transition probability and oscillator strengths have been calculated for the Ar XIII, Ti XVII and Fe XXI. The configurations included in the calculations are 2s² 2p², 2s² 2p 3l (l = s, p & d) and 4l (l = s, p, d, & f) of C-like Ar XIII, Ti XVII & Fe XXI which has 69 fine structures by using the fully relativistic flexible atomic code (FAC) program. These data are used in the determination of the reduced population and gain coefficients over a wide range of electron densities from (10⁺¹⁸ to 10⁺²³) and at various plasmas temperatures. The results show that the transitions in Ar¹⁸⁺, Ti²²⁺, and Fe²⁶⁺ ions are the most promising laser emission lines in the XUV and soft X-ray spectral regions.

XUV, Soft X-Ray, Laser Radiation, Population Inversion, Gain Coefficient

Abdelaziz, W. , Sherbeni, T. and Wahba, N. (2016) Theoretical Study of Laser Emission for C-Like (Ar XIII), (Ti XVII) and (Fe XXI). Open Journal of Applied Sciences, 6, 217-233. doi: 10.4236/ojapps.2016.64023.