Solid-state active media based on aminocoumarins

The lasing properties and photostability of eighteen aminocoumarins in polymethyl methacrylate, methyl methacrylate, and ethanol excited by an excimer XeCl laser are studied. It is shown that coumarins with a fluorinated methyl group and substituents in the third position of the molecule can be promising active media for lasers on polymer matrices doped with dyes.