Neon Laser with Wavelengths of 540.1 and 614.3 nm Pumped by a Pulsed Inductive Cylindrical Discharge

The results of studying the features of the spectral, temporal, and spatial characteristics of the radiation of neutral neon atoms upon pumping by a pulsed inductive cylindrical discharge are reported. Lasing was obtained at wavelengths of 540.1 and 614.3 nm with optical pulses duration of 13 ± 1 and 5 ± 1 ns (FWHM), respectively. The cross section of a laser beam is shown to be a ring 33.1 ± 0.1 mm diameter and 5.6 ± 0.1 mm wide; its intensity distribution over the cross section is inhomogeneous and has a granular structure, which is typical for lasers operating in the amplified spontaneous emission mode. The granular structure of the radiation spot has a pronounced radial symmetry, which, in our opinion, is due to the nature of the electric field in an inductive cylindrical discharge.