Population inversion of new transitions in the neon atom in the visible range

The temporal dynamics of the populations of the 3s levels of neon and its dependence on the hydrogen impurity concentration was studied in the active medium of a neon–hydrogen plasma laser excited by a longitudinal discharge with preionization. The limits of existence of the inversion of the λ = 585.3 nm transition were determined and population inversion was observed for new 3p–3s transitions in the neon atom at λ = 588.1, 594.4, 650.6, and 653.2 nm.