Accession Number : ADD013005

Title :   Photolytic Improvement of Dye Laser Lifetimes.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Fletcher,Aaron N ; Knipe,Richard H

Report Date : 31 Dec 1985

Pagination or Media Count : 5

Abstract : An object of the present invention is to provide a method of operating a dye laser system employing coumarin dyes. A further object of the present invention is to provide a method of operating a dye laser system employing coumarin dyes as a lasing medium whose lifetimes are 60 substantially extended over prior art techniques. These and other objects have been demonstrated by the present invention wherein the dye solution comprised of a coumarin laser dye and a solvent are placed in a laser dye cavity, screened from ultraviolet light 65 with a pyrex filter, and then covered with an inert gas. The energy input into the dye solution is then increased by increasing the rate of photolysis (lasing) with a flash-lamp. A significantly increased output and lifetime of the laser dye has been observed employing this technique.

Descriptors :   *PATENTS, *COUMARINS, *DYE LASERS, DYES, LIFE SPAN(BIOLOGY), GASES, INERT MATERIALS, LASER CAVITIES, PHOTOLYSIS, RATES, ENERGY, INPUT, FILTERS, HEAT RESISTANT GLASS, LIFE EXPECTANCY(SERVICE LIFE), SOLUTIONS(MIXTURES), OPTICAL PUMPING

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE