Two-photon absorption and effective optical power-limiting properties of small dendritic chromophores derived from functionalized fluorene/oxadiazole units
作者:Tzu-Chau Lin、Ying-Hsuan Lee、Bor-Rong Huang、Chia-Ling Hu、Yu-Kai Li
DOI:10.1016/j.tet.2012.04.073
日期:2012.6
A set of novel multi-branched chromophores composed of four analogues with generic skeletons of donor-π-acceptor (D-π-A) derived from functionalized fluorene/oxadiazole moieties has been synthesized and experimentally shown to possess strong and wide-dispersed two-photonabsorptivities in near infrared (NIR) region under the irradiation of femtosecond laser pulses. It is demonstrated that structural