Vol. 37, issue 04, article # 3

Abstract:

Electric discharge nitrogen lasers remain popular sources of UV radiation and find many scientific and practical applications. Currently, some of the requirements for commercial nitrogen lasers are small overall dimensions, high pulse-to-pulse stability, and extended service life. In this paper, a nitrogen laser excited by a pulsed longitudinal inductive-electric discharge is suggested as a source which satisfies such criteria. As a result of the experimental studies, lasing at wavelengths λ₁ = 337.1 and λ₂ = 357.7 nm was obtained. The generation energy reached 0.67 mJ with a pulse duration of 20 ns (FWHM) and a nitrogen pressure of 7...8 Torr. Pumping nitrogen only with a longitudinal discharge in an experimental setup with similar parameters led to a decrease in the lasing energy to 0.4 mJ (with the same pulse duration of 20 ns) at a nitrogen pressure of no higher than 5 Torr. Nitrogen lasers with these radiation parameters can be used to treat ophthalmic diseases and tuberculosis.

Keywords:

UV nitrogen laser, pulsed inductive discharge, longitudinal electric discharge, lasing energy

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