A novel electrode system with the assistance of surface sliding preionization was applied to improve the stability of the glow discharge with large aperture. The preionization unit was symmetrically fixed on the plane of cathode surface. A uniform and stable glow discharge was obtained in the mixture of iodide and nitrogen at the specific energy deposition of 4.5 J/L, pressure of 2.8～3.3 kPa, aperture size of 11 cm×10 cm. In theory, the electrode system is applicable in glow discharge with even larger aperture due to its unique preionization structure.
Key words
chemical oxygen iodine lasers /
pulsed chemical oxygen iodine lasers /
discharge electrode /
surface sliding /
preionization
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
［1］VAGIN N P, YURYSHEV N N. A pulsed chemical oxygen-iodine laser excited by a longitudinal electric discharge［J］. Quantum Electronics, 2002, 32:609-613.
［2] VAGIN N P, YURYSHEV N N. A pulsed chemical oxygen-iodine laser initiated by a transverse discharge［J］. Quantum Electronics, 2001,31: 127-131.
［3］APOLLONOV V V, FIRSOV K N , KAZANTSEV S Y. High power non-chain HF(DF) lasers initiated by self-sustained volume discharge［C］// Proceeding of SPIE, 1998, 3574: 374-384.
［4］VELIKANOV S D, GORELOV V G, GOSTEV I V, et al. Pulse-periodic chemical oxygeniodine laser with active medium formation by volumetric electric discharge［C］// Proceeding of SPIE, 2007, 6346:63463F.
［5］ LI Guo-fu, YU Hai-jun, DUO Li-ping, et al. Pulse operation of chemical oxygen-iodine laser by pulsed gas discharge with the assistance of spark preionization［J］.Chinese Physics Letters, 2009,26(11):114201.
PDF(365 KB)
