Laser on mixtures of nitrogen with electronegative gases pumped by a transverse discharge from a generator with inductive energy storage: Theory and experiment

摘要

Lasing and discharge characteristics of a nitrogen laser pumped by a transverse discharge from a generator with an inductive energy storage and a semiconductor current interrupter are investigated experimentally. A numerical model is proposed and the operation of a nitrogen - electronegative gas mixture laser is simulated. It is shown both theoretically and experimentally that admixtures of electronegative gases make it possible to control the laser pulse shape at the C-3 pi(u) - B-3 pi(g) transition of nitrogen. Laser pulses at a wavelength of 337.1 nm, consisting of two peaks, as well as rectangular pulses of duration 40-50 ns, are obtained in mixtures of nitrogen with NF3 and SF6 due to an increase in the electron attachment coefficient and an increase in the electric field. The output UV energy is similar to 25 mJ.