High-pressure power laser utilizing 3p–3s transitions in NeI generating radiation of wavelengths 703 and 725 nm

Lasing was observed for the first time as a result of the 3p [1/2]₁–3s[3/2]⁰₂ and 3p[1/2]₁–3s[3/2]⁰₁ transitions in the Ne atom generating light of wavelengths 703 and 725 nm. A working mixture of the He–Ne–Ar–Kr composition at pressures up to 3.5 atm was pumped by a fast-electron beam. The output energy reached 0.25 J when the volume of the active medium was 10 liters and the laser efficiency was ~0.1 %.