This article is cited in 1 paper

Lasers and amplifiers

Laser utilizing the 2⁺ nitrogen system with excitation powers up to 20 kW/cm³

B. M. Berkeliev, V. A. Dolgikh, I. G. Rudoĭ, A. E. Sevast'yanov, A. M. Soroka


Abstract: An investigation was made of the inversion kinetics in the 2⁺N₂ system in electron-beam-excited mixtures of nitrogen and light rare gases. Fast charge exchange processes of atomic He⁺ and Ne⁺ ions with Ar in three-body collisions were discovered. Lasing was obtained at λ = 358 nm for periods of up to 0.7 μs and with an efficiency of ~ 1% in an N₂–Ar–He mixture, and an instantaneous efficiency of more than 2% was obtained for lasing duration of 250 ns in an N₂–Ar–Ne–He mixture. The results indicated that it should be possible to build an efficient pulse-periodic laser utilizing the 2⁺ nitrogen system and emitting pulses of 200–300-ns duration.

UDC: 621.373.826.038.823

PACS: 42.55.Lt, 42.60.By, 42.60.Lh, 42.60.Jf

Received: 17.08.1989

 English version: Soviet Journal of Quantum Electronics, 1990, 20:9, 1045–1049

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