A. Bergmann et al., Photophysical characterization of pyrromethene dyes in solid matrices of acrylic copolymers, CHEM PHYS, 271(1-2), 2001, pp. 201-213
Some photophysical parameters of the pyrromethene laser dye PM567 and of tw
o newly synthesized pyrromethene laser dyes, P5Ac and P10Ac, in solid matri
ces of different acrylic copolymers and in corresponding mimetic liquid sol
utions are determined, They include absorption cross-section and stimulated
emission cross-section spectra, fluorescence quantum distributions, fluore
scence quantum yields, and fluorescence lifetimes. The saturable absorption
behaviour due to picosecond laser pulse excitation is studied. The photode
gradation under cw laser excitation and under pulsed picosecond pulse excit
ation is investigated. (C) 2001 Elsevier Science B.V. All rights reserved.