Planar KrCl* excilamp pumped by transverse self-sustained discharge with optical system for radiation concentration

Abstract

The design and emission parameters of a spontaneous radiation source (excilamp) at a 222 nm wavelength are presented. To obtain a high-power UV radiation, a volume transverse discharge was used in the high-pressure Ne–Kr–HCl mixture. A radiation power density of 1 kW cm−2 was gained at the excilamp output at a 2 mJ pulse energy. Successful attempts were made to synchronize the excilamp pulse with the pulse of second laser source. An optical system was developed to deliver and concentrate the UV radiation on to the area with a specified geometry. The method of modelling and analysis technique of the optical system using the OptiCAD 9.3 Optical Analysis Program software is described, as well.

About the Uniformity and the Stability of a Volume Discharge in Helium in Near-Atmospheric Pressure

“…One of the applications of volume discharges in inert gases is gas laser pumping. In this case, in order to increase the power characteristics of gas lasers, we need (i) to improve the pumping methods and (ii) to optimize the excitation conditions [1,2,3,4,5,6,7]. A problem of pumping optimization consists in the reception of certain electric characteristics of discharge plasma with a constant spatial uniformity during the pumping.…”