Patent ID: 6738400
Filing Date: 2004-05-18
Classification: H01S

Abstract:
A gas discharge laser comprising:an elongated ceramic cylindrical tube that encloses a gaseous plasma; a plurality of electrode assemblies each located at an end of said elongated ceramic cylindrical tube; a plurality of optical elements each located at the end of said elongated ceramic cylindrical tube to contain said gaseous plasma and form an optical cavity; a plurality of solid circular metal discs each having a diameter less than a diameter of an inner surface of said ceramic tube such that a substantial gap is formed between a circumferential edge of said circular metal members and said inner surface, said plurality of circular members being located coaxially along the longitudinal length of said elongated ceramic cylindrical tube; mounting means, formed of a thermally insulating refractory material, for coaxially mounting said metal discs with the discs separated along the axial direction such that gaseous plasma flows between two adjacent metal members.