Lasing properties and photostability of 4,4'-CO2C4H9-bis-substituted para-t
erphenyl and azacoumarin (AC1F), emitting under excimer XeCl laser pumping
in the blue-green spectral region, and of pyrromethene 580 and phenalemine
512, emitting under Cu laser pumping in the red spectral region, were studi
ed in the PMMA matrix and ethanol solutions.