Solid state active media with laser pumping

Lasing properties and photostability of 4,4'-CO2C4H9 bis-substituted paraterphenyl and azacoumarin AClF emitting in the blue-green region of the spectrum in poly(methyl methacrylate) and ethanol pumped by a XeCl excimer laser and both pyrromethene 580 and phenalemine 512 pumped by a Cu laser emitting in the red region of the spectrum have been investigated.