Laser action in the IR, UV and VUV in runaway electron preionized discharges

Alexei N. Panchenko; Nikolai A. Panchenko; Dmitry A. Sorokin; Mikhail I. Lomaev

doi:10.1117/12.2256279

13 January 2017 Laser action in the IR, UV and VUV in runaway electron preionized discharges

Alexei N. Panchenko, Nikolai A. Panchenko, Dmitry A. Sorokin, Mikhail I. Lomaev

Proceedings Volume 10254, XXI International Symposium on High Power Laser Systems and Applications 2016; 1025411 (2017) https://doi.org/10.1117/12.2256279
Event: XXI International Symposium on High Power Laser Systems and Applications, 2016, Gmunden, Austria

Abstract

Laser action in run-away electron preionized discharge (REP DD) was studied. Efficient laser emission was obtained in wide spectral range from IR to VUV. It was shown that ultimate efficiency of non-chain chemical lasers on HF (DF) molecules and N₂ laser at 337.1 nm can be achieved in REP DD. New mode of N₂ laser operation with 2 or 3 peaks in successive REP DD current oscillations was found. Efficient lasing on KrF* and XeF* excimer molecules with parameter close to laser parameters of lasers pumped by conventional transverse discharge were demonstrated for the first time. Laser action on F₂* at 157 nm and rare gas fluorides under REP DD pumping was obtained for the first time, as well. The efficiency and pulse duration of VUV F₂* laser under REP DD excitation are comparable with those obtained in transverse discharges with preionization. VUV emission of REP DD in binary and ternary Ar-Xe-(He) and Ar-Kr-(He) mixtures at wavelength close to 147 nm was measured. Possibility of VUV lasing in mixtures of rare gases is considered.

Citation Download Citation

Alexei N. Panchenko, Nikolai A. Panchenko, Dmitry A. Sorokin, and Mikhail I. Lomaev "Laser action in the IR, UV and VUV in runaway electron preionized discharges", Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 1025411 (13 January 2017); https://doi.org/10.1117/12.2256279

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