物理化学学报 >> 2011, Vol. 27 >> Issue (03): 717-721.doi: 10.3866/PKU.WHXB20110340

光化学和辐射化学 上一篇    下一篇

(苄基三乙基铵)双(1,3-二硫杂环戊烯-2-硫酮-4,5-二硫基)-金的三阶非线性光学性质

陈经纬1, 王新强2, 任诠1, 李廷斌3, 杨洪亮1, 张敬楠1, 李国超1   

  1. 1. 山东大学光学系, 济南 250100;
    2. 山东大学晶体材料国家重点实验室, 济南 250100;
    3. 泰山学院材料与化学工程系, 山东 泰安 271021
  • 收稿日期:2010-10-29 修回日期:2011-01-06 发布日期:2011-03-03
  • 通讯作者: 任诠 E-mail:qren@sdu.edu.cn
  • 基金资助:

    国家自然科学基金(60778037, 50772059, 11004123), 高等学校全国优秀博士学位论文专项资金(200539)和山东省自然科学基金(ZR2009GQ007)资助项目

Third Order Nonlinear Optical Properties of Benzyltriethylamine Bis(2-thioxo-1,3-dithiole-4,5-dithiolato) Aurate(III)

CHEN Jing-Wei1, WANG Xin-Qiang2, REN Quan1, LI Ting-Bin3, YANG Hong-Liang1, ZHANG Jing-Nan1, LI Guo-Chao1   

  1. 1. Department of Optics, Shandong University, Jinan 250100, P. R. China;
    2. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, P. R. China;
    3. Department of Material Science and Technology, Taishan University, Tai′an 271021, Shandong Province, P. R. China
  • Received:2010-10-29 Revised:2011-01-06 Published:2011-03-03
  • Contact: REN Quan E-mail:qren@sdu.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (60778037, 50772059, 11004123), Foundation for the Author of National Excellent Doctoral Dissertation of China (200539), and Science Foundation of Shandong Province, China (ZR2009GQ007).

摘要:

合成了一种新的配位化合物(苄基三乙基铵)双(1,3-二硫杂环戊烯-2-硫酮-4,5-二硫基)-金(BTEAADT). 利用旋涂技术制备了该材料与聚甲基丙烯酸甲酯(PMMA)掺杂的复合薄膜, 该材料在复合薄膜中的质量分数为1%. 采用Z扫描方法, 分别测试了该材料的乙腈溶液和该材料与PMMA复合薄膜在波长为1064 nm, 脉宽为20 ps条件下的三阶非线性光学特性. 同时还研究了复合薄膜的线性光学性质. Z扫描的结果表明, 复合薄膜和该材料的乙腈溶液都具有自散焦效应, 非线性折射率都是负值. 在实验条件下, 两者的非线性吸收效应都是可以忽略的. 经过计算得出溶液样品的非线性折射率为-1.459×10-18 m2·W-1, 复合薄膜样品的非线性折射率为-3.978×10-15 m2·W-1. 该材料在1064 nm处的非线性光学器件方面有潜在应用价值.

关键词: 非线性光学性质, Z扫描技术, 薄膜

Abstract:

We prepared a new crystalline nonlinear optical coordination compound, benzyltriethylamine bis (2-thioxo-1,3-dithiole-4,5-dithiolato) aurate(III) (BTEAADT). A BTEAADT-doped poly(methyl methacrylate) (PMMA) thin film with a mass fraction of 1% was prepared by spin-coating. The third-order nonlinear optical properties of BTEAADT in acetonitrile and a BTEAADT-doped PMMA film were investigated using the laser Z-scan technique with 20 ps pulses at 1064 nm. The linear optical properties of the polymer thin film were also studied. The Z-scan spectra revealed that the polymer thin film sample possessed negative nonlinear refraction and exhibited a similar self-defocusing effect to that found for the solution. In addition, nonlinear absorption was negligible for both systems under the experimental conditions used. The nonlinear refractive index was calculated to be -1.459×10-18 m2·W-1 for the solution sample and -3.978×10-15 m2·W-1 for the film. These results suggest that this material is a promising candidate for application in nonlinear optical devices such as all-optical switching manufacture at 1064 nm.

Key words: Nonlinear optical property, Z-scan, Thin film

MSC2000: 

  • O644