UV lasing in nitrogen pumped by a runaway electron preionised diffuse discharge

Victor F. Tarasenko; Evgenii Kh. Baksht; Alexander G. Burachenko

doi:10.1117/12.879126

15 November 2010 UV lasing in nitrogen pumped by a runaway electron preionised diffuse discharge

Victor F. Tarasenko, Evgenii Kh. Baksht, Alexander G. Burachenko

Proceedings Volume 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 775114 (2010) https://doi.org/10.1117/12.879126
Event: 18th International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2010, Sofia, Bulgaria

Abstract

UV lasing is studied in nitrogen and the N2-SF6 mixture pumped by a volume discharge initiated by a runaway-electron preionised diffuse discharge (REP DD) produced in an inhomogeneous electric field. It is shown, that lasing at a wavelength of 337.1 nm is observed at pressures up to 2.5 atm without any preionisation source. At a pressure of 0.5 atm with the use of blade electrodes and the N₂ :SF₆ =10:1 active medium of length ~6 cm, the output laser energy of ~2 mJ was achieved for the pulse power of 0.55 MW. The REP DD pumping regime is compared with the regime of pumping by a volume discharge produced by a preionisation source.

Citation Download Citation

Victor F. Tarasenko, Evgenii Kh. Baksht, and Alexander G. Burachenko "UV lasing in nitrogen pumped by a runaway electron preionised diffuse discharge", Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 775114 (15 November 2010); https://doi.org/10.1117/12.879126

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