【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820nm处的最大双光子吸收截面(σ=212GM)。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。更多还原

【Abstract】 2,5-Bis(4-dimethylaminostyryl)pyrazinewith D-π-A-π-D symmetric structure is prepared and its twophoton-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=212GM)is obtained at 820 nm.The quadratic dependence of the fluorescence on the excitation laser intensity confirms the two-photon process.更多还原