Two-photon absorption and effective broadband optical power limiting properties of a multi-branched chromophore containing 2,3-diarylquinoxalinyl moieties as the electron-pulling units
作者:Tzu-Chau Lin、Yu-Jhen Huang、Yong-Fu Chen、Chia-Ling Hu
DOI:10.1016/j.tet.2009.11.109
日期:2010.2
A novel multi-branched chromophore containing 2,3-diarylquinoxalinyl units as the electron-acceptors had been synthesized and its nonlinear optical properties were characterized in the femtosecond and nanosecond regime. The experimental results show that the studied fluorophore possesses strong and wide-dispersed two-photon absorption in near infrared (NIR) region. It is demonstrated that the incorporation
合成了一种新型的含2,3-二芳基喹喔啉基单元作为电子受体的多支发色团,并在飞秒和纳秒范围内表征了其非线性光学性质。实验结果表明,所研究的荧光团在近红外(NIR)区域具有较强且分散的双光子吸收。结果表明,在染料分子中掺入2,3-二取代的喹喔啉部分作为π共轭的一部分可能是解决研究光谱区域内大分子双光子吸收不足的一种有用方法。