Degenerate Two-Photon Absorption and Effective Optical-Power-Limiting Properties of Multipolar Chromophores Derived from 2,3,8-Trisubstituted Indenoquinoxaline
作者:Tzu-Chau Lin、Fang-Ling Guo、May-Hui Li、Che-Yu Liu
DOI:10.1002/asia.201300223
日期:2013.9
Two analogous multipolar chromophores (1 and 2) that contained 2,3,8‐trisubstituted indenoquinoxaline moieties have been synthesized and characterized for their two‐photon absorption properties, both in the femtosecond and nanosecond time regimes. We demonstrated that their multi‐branched framework structures, which incorporated appropriately functionalized indenoquinoxaline units, afforded large molecular
已合成了两个类似的包含2,3,8-三取代的茚并喹喔啉部分的多极发色团(1和2),并在飞秒和纳秒时间范围内对它们的双光子吸收特性进行了表征。我们证明了它们的多分支框架结构,其中包含适当官能化的茚并喹喔啉单元,在所研究的光谱范围内提供了大的分子非线性吸收率。纳秒级染料分子的有效光功率限制和稳定行为(2)也进行了研究,结果表明,这种结构基序可能是用于快速响应和相关宽带光学抑制应用的高活性双光子系统分子设计的有用方法,特别是对于面对较长时间的激光脉冲而言期间。