Synthesis and Third-Order Nonlinear Optical Properties of Copper and Nickel Coordination Complexes of Azo Dyes

  • Yongfang Zhang
  • Quan Gan
  • Shuangqing Wang
  • Guoqiang Yang


An azo dye, 2-(4,5-dicyano-1-H-imidazolyazo)-5-N, N-diethylaminophenol, and the corresponding divalent copper and nickel mononuclear coordination complexes were synthesized. The molecular third-order nonlinear optical characteristics of these azo transition metallic chelates were investigated in N,N′-dimethylformamide solution using a standard Z-scan technique with a 7-ns laser pulses at 1,064 nm. The results of n 2 (the nonlinear refraction index) and γ (the hyperpolarizability) values of the two complexes indicated that metal chelating lead to considerable enhancement in third-order optical nonlinearities, which revealed that such coordination complexes exhibit strong nonlinear optical absorption effects and self-defocusing performance. These materials are promising candidates as large third-order nonlinear optical materials.


Azo metallic chelate Nonlinear optics Z-scan Self-defocusing 



We sincerely express our thanks to the Natural Science Foundation of China (No. 50973118 and 50773085) for the financial supports.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.School of Resources and EnvironmentUniversity of Jinan (UJN)JinanPeople’s Republic of China
  2. 2.Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of ChemistryChinese Academy of SciencesBeijingPeople’s Republic of China

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