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US 4,051,062 AGranted
7-Amino coumarin dyes for flashlamp-pumped dye lasers
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsPeter R. Hammond, Erhard J. Schimitschek, John A. Trias
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Abstract
7-Amino coumarin dyes with hydrocarbon substituents on the amino group, but otherwise unsubstituted are stable, efficient dyes which lase in the blue-green region in a flashlamp-pumped dye laser.
Claims4
A laser dye solution comprising a compound of the type ##STR8## wherein R and R' are the same or different, being selected from the group consisting of hydrogen, methyl, ethyl, and a 3 carbon chain fused to ring 1 to form a heterocyclic ring.
Dependencies are inferred from the claim text.