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Third-Order Optical Nonlinearity of a Novel Material: (Tetramethylammonium)bis(1,3-dithiole-2-thione-4,5-dithiolato) Copper |
| FENG Lin1;WANG Yan-Ling2;REN Quan1;ZHGNG Guang-Hui2;YANG Hong-Liang1;SUN Xiang-Bing1 |
| 1Department of Optics, Shandong University, Jinan 250100
2State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100 |
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| Cite this article: |
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FENG Lin, WANG Yan-Ling, REN Quan et al 2005 Chin. Phys. Lett. 22 2834-2836 |
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Abstract A novel dmit2- salt: (tetramethylammonium)bis(1,3-dithiole-2-thione-4,5-dithiolato) copper, abbreviated as MECu, is synthesized and its third-order optical nonlinearity is characterized by Z-scan technique at a wavelength of 1064nm with laser duration of 30ps. Z-scan curves reveal a negative Kerr coefficient at 1064nm and no nonlinear absorption is observed. The nonlinear refraction coefficient n2 and the second hyperpolarizability γ have been determined to be as large as 2.15×10-11esu and 3.23×10-31esu, respectively, suggesting MECu is a potential material for optical device applications.
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| Keywords:
42.65.An
42.65.Jx
81.20.Ka
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Published: 01 November 2005
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| PACS: |
42.65.An
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(Optical susceptibility, hyperpolarizability)
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42.65.Jx
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(Beam trapping, self-focusing and defocusing; self-phase modulation)
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81.20.Ka
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(Chemical synthesis; combustion synthesis)
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