bands. The laser action of the new dyes has been analysed under transversal pumping at 10 Hz repetition rate, in both liquid phase and incorporated into solid polymeric matrices. Lasing efficiencies of up to 40 % were reached with high photostabilities with the laser output remaining at the initial level after 1×105 pump pulses in the same position of the sample. The laser action of the new dyes outperforms
染料PM567的不对称取代的BODIPY类似物是由带有
茚,
芴或二
芴单元的2-酰基
吡咯和
吡咯合成的。
芴与BODIPY核之间的键合类型在BODIPY生色团的光物理中起重要作用。确实,脂族桥引起生色团之间的能量转移过程,而
乙烯基间隔基允许它们之间发生电子相互作用,从而导致光谱带出现大的红移。在横向泵浦下,以10 Hz重复频率分析了新型
染料的激光作用,在液相和掺入固体聚合物基质中均如此。高光稳定性时,激光输出达到40%,激光输出在1×10 5后保持在初始
水平在样品的相同位置泵浦脉冲。新
染料的激光作用优于在相同光谱范围内发射的商业
染料的激光行为。用
茚替代
芴可以终止荧光和激光发射,但可以开发
铁阳离子荧光传感器。