Efficient stimulated emission of ultraviolet and infrared radiation from a mixture of nitrogen and light rare gases

Electron beam excitation was used to achieve lasing simultaneously due to the 3d–4p transitions in Ar (λ = 1.79 μm) with a total efficiency of ~ 2 % and due to the 2⁺ system in N₂ (λ = 358 nm) with an instantaneous excitation efficiency of up to 4%.