Laser action from 2,6,8-trisubstituted-1,3,5,7-tetramethyl-pyrromethene-BF_2 complexes: part 2

Abstract
In laser activity 1,3,5,7-tetramethyl-2,6-dicarboethoxy-8-cyanopyrromethene-BF2 complex 5 under flash-lamp excitation was ∼1.8 times more energy efficient than Rhodamine-B; about the same efficiency of Rhodamine-575 was found for 1,3,5,7-tetramethyl-2,6,8-triethylpyrromethene-BF2 complex 2