Patent ID: 7079565
Filing Date: 2006-07-18
Classification: H01S

Abstract:
1. An excimer or molecular fluorine laser system, comprising: a resonator including therein a discharge chamber filled with a gas mixture, the discharge chamber including at least one window at an end of the discharge chamber for sealing the discharge chamber and for transmitting a laser pulse; a pair of elongated discharge electrodes in the discharge chamber and connected to a discharge circuit for energizing the gas mixture and generating the laser pulse, each discharge electrode including a conductive structure that is exposed to the gas mixture in order to impart electrical energy to the gas mixture and generate the laser pulse, with at least one of the electrodes including an elongated channel having an internal width greater than the width of the opening to the channel; a elongated ceramic spoiler, said spoiler including a projecting tongue, wherein at least portion of the free end of the tongue has a width larger than the width of the tongue at a point closer to the spoiler, said tongue being received in the channel of the electrode; a spring mounted in the channel and biasing the tongue of the spoiler against the sides of the channel so that the spoiler is held in a stationary position with respect to the electrode body; and a blower for circulating the gas mixture between the pair of discharge electrodes.