In the present paper, the review of the basic results obtained at the Laboratory of Optical Radiation at High Current Electronics Institute SB RAS during 2007-2009 years is presented. Efficient radiation of Ar_{2}, Kr_{2}, Xe_{2}, KrBr*, KrCl*, XeI*, XeBr*, XeCl*, Cl_{2}* molecules and I atoms was obtained in rare gas or in rare gas-Br_{2} (Cl_{2}, I_{2}) mixtures. Study of radiation parameters and lifetime period of the manufactured barrier discharge excilamps has been performed.
The results of experimental investigations of diffuse (volume) nanosecond elevated-pressure discharges in a non-uniform electric field at a time resolution of a recording system being equal to ≈100 ps are presented in this paper. The application of the runaway electrons preionized diffuse discharge is promising for obtaining high-power radiation pulses in the VUV and UV spectral region.
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