Ultrafast third-order optical nonlinearity of several sandwich-type phthalocyaninato and porphyrinato europium complexes

被引：11
作者：
机构：
[1] State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University
[2] State Key Laboratory of Rare Earth Material Chemistry and Application, College of Chemistry, Peking University
[3] Department of Chemistry, Shandong University
来源：
Gong, Q.-H. (qhgong@pku.edu.cn) | 2005年 / Institute of Physics Publishing卷 / 14期
关键词：
Phthalocyanine; Porphyrin; Ultrafast third-order optical nonlinearity;
D O I：
10.1088/1009-1963/14/11/014
中图分类号：
学科分类号：
摘要：
The third-order optical nonlinearity of two sandwich-type phthalocyaninato and porphyrinato europium complexes, including double- and triple-deckers (Eu[Pc(OC5H11)8]2, Eu 2(Pc)(TPP)2, Pc≤phthalocyanine, TPP≤5, 10, 15, 20- tetraphenylporphyrinate), was investigated by using the femtosecond time-resolved optical Kerr gate method at 830 nm wavelength. Their second-order hyperpolarizability is estimated to be 0.74×10-30esu and 3.0×10-30esu respectively. This exhibits an evident enhancement in comparison with 0.47×10-30esu for one-decker Eu(Pc)(acac) (acac≤acetylacetonate), which is also measured under the same conditions. The enhancement is attributed to the introduction of lanthanide metal to the large π-conjugated system, intermacrocycle interaction and two-photon resonance etc. © 2005 Chin. Phys. Soc. and IOP Publishing Ltd.
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页码：2226 / 2230
页数：4
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