Soft x-ray spectral analysis of samarium plasmas produced by solid-state laser pulses

R. Lokasani, J. Sheil, E.F. Barte, H. Hara, T. Tamura, T. Gisuji, T. Higashiguchi, C. Suzuki, P. Dunne, G. O'Sullivan, J. Limpouch

Research output: Contribution to JournalArticleAcademicpeer-review


© 2018 IOP Publishing Ltd.XUV spectra of 150 ps laser-produced samarium (Sm) plasmas in the 1.8-10 nm wavelength region, where Δn = 1, n = 4 - n = 5 and Δn = 0, n = 4 - n = 4 transitions dominate the observed emission, were investigated experimentally and theoretically. Ab initio calculations using the flexible atomic code, as well as consideration of isoelectronic trends, are all employed to identify a number of new features in spectra from Sm16+ to Sm34+. The results show that Δn = 0, n = 4 - n = 4 emission from highly charged ions merge to form an intense unresolved transition arrays in the 7.5 nm region and Δn = 1, n = 4 - n = 5 resonance transitions contribute in the 3-7 nm region of the Sm spectrum. In addition, a number of strong individual lines at shorter wavelengths are seen to arise from Cu- and Zn-like ions and a number of new assignments are made for Zn-like Sm32+.
Original languageEnglish
Article number215001
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number21
Publication statusPublished - 8 Oct 2018
Externally publishedYes


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