The interaction potential energies and quasi-continuum vacuum uv emissions of rare-gas-alkali ionic excimers

摘要

Ab initio calculations for the electronic states of ionic excimer molecules consisting of rare gases and alkali metals are presented. The calculations included the ground 1~1Σ~+ states and the first excited singlet 2~1Σ~+, which correspond to Rg(~1S)_A~+(~1S) and Rg~+(~2p)+A(~2S) separated limits, respective- ly. The calculated results predicted that the emissions from the ~2~1Σ~+(v' =0) states to the higher v'' levels of the 1~1Σ~+ states have the largest relative transition probabilities, which are promising for lasing in the vacuum and extreme ultraviolet (VUV/XUV) spectral ranges.