Improve the luminous efficacy of dielectric barrier discharge xenon lamp

Xenon excimer dielectric barrier discharge is a good candidate for free mercury lightning. The studied device¹ is consisting of two glass plates separated by a constant gas gap. The glass thickness is 4 mm and the gap 2 mm. A transparent conducting material (electrode) has been deposited on both external sides (plane to plane electrodes) and white phosphors² on both internal sides of the dielectric. The lamp is filled with Neon-xenon gas mixture and operates in a pressure range of 100-400 torr. In a previous work¹, for sinusoidal and pulsed excitations, we have shown the influence of the applied voltage (amplitude and frequency) on the consuming power, the light emission and mostly on the homogeneity of the discharge (modeling and experimental works).