Patent ID: 6956885
Filing Date: 2005-10-18
Classification: H05G

Abstract:
1. An apparatus for generating electromagnetic radiation at or below ultraviolet wavelengths, said apparatus comprising: a low pressure chamber; a nozzle projecting into said low pressure chamber and operable to pass a fluid at high pressure from a nozzle outlet into said low pressure chamber, said fluid being subject to cooling through expansion to yield matter suitable for use as a laser target; and one or more optical elements operable to focus laser light onto said matter to generate a plasma emitting electromagnetic radiation at or below ultraviolet wavelengths; wherein said nozzle has a beveled outer rim portion and said one or more optical elements are disposed to focus said laser light onto said matter along a converging path which would be at least partially blocked by an outer rim flush with said nozzle outlet at an outer diameter of said nozzle that would be present if said nozzle did not have said beveled outer rim portion.