Enhancement of Two-photon Absorption by Ce3+ Sensitization in Organic Dyes

被引：0
|
作者：
LI Jian-fu1
2.College of Physics
3.Department of Physics
机构：
来源：
Chemical Research in Chinese Universities | 2007年 / 05期
基金：
中国国家自然科学基金;
关键词：
Two-photon absorption; Frequency upconversion; Organic dye;
D O I：
暂无
中图分类号：
O647.31 [吸附理论];
学科分类号：
070304 ; 081704 ;
摘要：
The two-photon absorption(TPA)and TPA-induced frequency upconversion emission properties of the dyes 4-[P-(dicyanoethylamino)crystal]-N-methypyrdinium iodide and the complex of 4-[P-(dicyanoethylamino)crystal]-N-methypyrdinium iodide and Ce(NO3)3 were experimentally studied.It was found that the TPA cross section for the dye sensitized by Ce3+ is two factors larger than that of the dye without being sensitized.A three-level system model of the dye molecules was used to analyze the enhancement of TPA by the sensitizer Ce3+,which indicated that the sensitizer results in the increase of the transition dipole moment from the one-photon allowed excited state(1Bu)to the two-photon allowed excited state(2Ag).
引用
收藏
页码：571 / 573
页数：3
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