Neon Laser with Wavelengths of 540.1 and 614.3 nm Pumped by a Pulsed Inductive Cylindrical Discharge
Atmospheric and Oceanic Optics(2022)
Abstract
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.
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Key words
inductive pulsed cylindrical discharge,NeI laser,laser beam shape,amplified spontaneous emission
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