A. M. Razhev, A. I. Shchedrin, A. G. Kalyuzhnaya, A. V. Ryabtsev, A. A. Zhupikov, “Effect of the pump intensity on the efficiency of a KrF excimer electric-discharge laser on a He–Kr–F<sub>2</sub> mixture”, Kvantovaya Elektronika, 2004, Volume 34, Number 10,Pages <nobr>901

This article is cited in 14 papers

Lasers

Effect of the pump intensity on the efficiency of a KrF excimer electric-discharge laser on a He–Kr–F₂ mixture

A. M. Razhev^a, A. I. Shchedrin^b, A. G. Kalyuzhnaya^b, A. V. Ryabtsev^b, A. A. Zhupikov^a

^a Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
^b Institute of Physics, National Academy of Sciences of Ukraine, Kiev

Abstract: The effect of the pump parameters on the efficiency of operation of a KrF gas-discharge excimer laser on a He–Kr–F₂ mixture is studied. A theoretical model of the excitation system and the kinetic processes in the plasma of this laser is developed. A pump system based on an LC inverter with a spark gap as a high-voltage switch, automatic UV preionisation, and a low-inductance discharge circuit is created. To increase the efficiency and the output energy of the KrF laser based on a He–Kr–F₂ mixture, it is proposed to enhance the pump intensity to 4 MW cm^-3 by increasing the inductance between the LC inverter and the discharge circuit to 100 nH. An output energy of 1 J at an efficiency of 2% is achieved for the first time for the KrF laser operating on this mixture.

PACS: 42.55.Lt, 42.60.Lh

Received: 25.03.2004
Revised: 30.06.2004