中国物理B ›› 2005, Vol. 14 ›› Issue (11): 2226-2230.doi: 10.1088/1009-1963/14/11/014

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

姜建壮1, 黄文涛2, 李焱2, 向红2, 杨宏2, 龚旗煌2, 黄岩谊3, 黄春辉3   

  1. (1)Department of Chemistry, Shandong University, Jinan 250100, China; (2)State Key Laboratory for Mesoscopic Physics and Department of Physics,Peking University, Beijing 100871, China; (3)State Key Laboratory of Rare Earth Material Chemistry and Application, College of Chemistry, Peking University, Beijing 100871, China
  • 收稿日期:2005-03-04 修回日期:2005-04-11 出版日期:2005-11-20 发布日期:2005-11-20
  • 基金资助:
    Project supported by the National Key Research Program of China (Grant No TG1999075209) and the National Natural Science Foundation of China (Grant Nos 10434020, 90206003 and 60378012).

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

Huang Wen-Tao (黄文涛)a, Li Yan (李焱)a, Xiang Hong (向红)a, Yang Hong (杨宏)a, Gong Qi-Huang (龚旗煌)a, Huang Yan-Yi (黄岩谊)b, Huang Chun-Hui (黄春辉)b, Jiang Jian-Zhuang (姜建壮)c    

  1. a State Key Laboratory for Mesoscopic Physics and Department of Physics,Peking University, Beijing 100871, China; b State Key Laboratory of Rare Earth Material Chemistry and Application, College of Chemistry, Peking University, Beijing 100871, China; c Department of Chemistry, Shandong University, Jinan 250100, China
  • Received:2005-03-04 Revised:2005-04-11 Online:2005-11-20 Published:2005-11-20
  • Supported by:
    Project supported by the National Key Research Program of China (Grant No TG1999075209) and the National Natural Science Foundation of China (Grant Nos 10434020, 90206003 and 60378012).

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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, Eu2(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 \pi -conjugated system, intermacrocycle interaction and two-photon resonance etc.

关键词: ultrafast third-order optical nonlinearity, phthalocyanine, porphyrin

Abstract: The third-order optical nonlinearity of two sandwich-type phthalocyaninato and porphyrinato europium complexes, including double- and triple-deckers Eu[Pc(OC5H11)8]2, Eu2(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 \pi -conjugated system, intermacrocycle interaction and two-photon resonance etc.

Key words: ultrafast third-order optical nonlinearity, phthalocyanine, porphyrin

中图分类号:  (Optical susceptibility, hyperpolarizability)

  • 42.65.An
42.65.Hw (Phase conjugation; photorefractive and Kerr effects) 78.40.Me (Organic compounds and polymers) 78.20.-e (Optical properties of bulk materials and thin films)