标题：Third-order optical nonlinearities of an organometallic complex Bis(tetra-n-propylammonium)bis(2-thioxo-1,3-dithiole-4,5-dithiolato)cupr ate(II) doped in solid PMMA films
作者：Zhang, J. N.; Wang, X. Q.; Ren, Q.; Yang, H. L.; Chen, J. W.; Sun, Q.; Li, G. C.; Li, T. B.
作者机构：[Zhang, J. N.; Ren, Q.; Yang, H. L.; Chen, J. W.; Sun, Q.; Li, G. C.] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.; [Wang, 更多
通讯作者：Zhang, J N
通讯作者地址：[Zhang, JN]Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.
来源：OPTICS AND LASER TECHNOLOGY
关键词：Third order nonlinearity; Z scan technique; Polymeric thin films
摘要：An organometallic complex bis(tetra-n-propylammonium)bis(2-thioxo-1 3-dithiole-4 5-dithiolato) cuprate(II) [(C3H7)(4)N](2)[Cu(dmit)(2)] (dmit(2-) =4 5-dithiolate-1 3-dithiole-2-thione) abbreviated as PrCu was synthesized The films of PrCu were prepared using spin coating method The third-order nonlinear optical properties of PrCu in acetone solution and PMMA films were investigated by Z-scan technique at 1064 nm with laser duration of 20 ps The Z-scan spectra reveal that the composite films exhibit large negative nonlinear refractive indices of the order of 10(-15) m(2)/W which are three orders larger than that in acetone solution The nonlinear absorption coefficients were calculated to be 9 416 x 10(-10) m/W For the composite films the figure of merit W and T meet the requirement of all-optical switching devices The experimental results show that the PrCu-doped PMMA films have potential applications for nonlinear optical devices (C) 2010 Elsevier Ltd All rights reserved