期刊
DYES AND PIGMENTS
卷 119, 期 -, 页码 70-74出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2015.03.025
关键词
Phthalocyanine; Sandwich complex; Third-order optical nonlinearity; Z-scan; Lanthanide; Optical material
资金
- National Natural Science Foundation of China [51173075, 11374079, 11474078]
- Natural Science Foundation of Jiangsu Province [BK20130054]
A novel sandwich-type erbium triple-decker complexes with mixed phthalocyanine and Schiff-base ligands was synthesized and characterized by optical absorption spectroscopy. The third-order nonlinear optical properties of the sandwich-type complexes in dichloromethane were investigated using Z-scan measurement at 532 am with 20 ps pulses. The Z-scan results reveal that the sandwich-type complexes exhibit strong reverse saturable absorption and self-focusing effect. The third-order nonlinear susceptibility and second-order hyperpolarizability of the complexes are estimated to be 731 x 10(-13) esu and 0.94 x 10(-30) esu, respectively. Our results indicate that the sandwich-type mixed (phthalocyaninato)(Schiff-base) complexes are promising candidate materials for future nonlinear optical applications such as wavelength conversion and optical switching. (C) 2015 Elsevier Ltd. All rights reserved.
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