影像科学与光化学 ›› 2015, Vol. 33 ›› Issue (4): 315-320.DOI: 10.7517/j.issn.1674-0475.2015.04.315

• 论文 • 上一篇    下一篇

2,5-双(对二甲氨基苯乙烯基)吡嗪的双光子诱导荧光性质

郝永超1,2, 陈懿1   

  1. 1. 中国科学院 理化技术研究所 光化学转换和光电信息材料重点实验室, 北京 100190;
    2. 中国科学院大学, 北京 100049
  • 收稿日期:2015-04-29 修回日期:2015-05-11 出版日期:2015-07-16 发布日期:2015-07-16
  • 通讯作者: 陈懿

Two-photon-inducedFluorescence of 2,5-Bis(4-dimethylaminostyryl)pyrazine

HAO Yongchao1,2, CHEN Yi1   

  1. 1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;
    2. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2015-04-29 Revised:2015-05-11 Online:2015-07-16 Published:2015-07-16

摘要:

本工作合成了具有D-π-A-π-D对称结构的化合物2,5-双(对二甲氨基苯乙烯基)吡嗪。利用飞秒激光器研究了2,5-双(对二甲氨基苯乙烯基)吡嗪的双光子吸收特性,获得了在820 nm处的最大双光子吸收截面(σ= 212 GM)。荧光发射强度与激发光强平方的线性关系证明了2,5-双(对二甲氨基苯乙烯基)吡嗪的双光子诱导发光机制。

关键词: 2,5-双(对二甲氨基苯乙烯基)吡嗪, 双光子诱导荧光, 双光子吸收, 飞秒激光

Abstract:

2,5-Bis(4-dimethylaminostyryl)pyrazinewith D-π-A-π-D symmetric structure is prepared and its two-photon-induced fluorescence is investigated using femto-second laser pulses. Strong two-photon induced fluorescence is detected in DMSO solution, and the largest two-photon absorption cross-section (σ =212 GM)is obtained at 820 nm.The quadratic dependence of the fluorescence on the excitation laser intensity confirms the two-photon process.

Key words: 2,5-bis(4-dimethylaminostyryl)pyrazine, two-photon-induced fluorescence, two-photon absorption, femtosecond laser