无机材料学报 ›› 2013, Vol. 28 ›› Issue (9): 1003-1008.DOI: 10.3724/SP.J.1077.2013.12771 CSTR: 32189.14.SP.J.1077.2013.12771

• 研究论文 • 上一篇    下一篇

含Ag量子点钠硼硅玻璃的三阶非线性光学性质

赵秀丽1, 梁晓娟1, 罗洪艳1, 陈兆平1, 向卫东1, 2   

  1. (1. 温州大学 化学与材料工程学院, 温州 325035; 2. 同济大学 材料科学与工程学院, 上海 201804)
  • 收稿日期:2012-12-24 修回日期:2013-02-06 出版日期:2013-09-20 网络出版日期:2013-08-14
  • 作者简介:赵秀丽(1987-), 女, 硕士研究生. E-mail: xiulizhao@126.com
  • 基金资助:

    国家自然科学基金(51272059); 浙江省科技创新团队项目(2009R50010)

Third-order Nonlinear Optical Properties of Silver Quantum Dots Doped in Sodium Borosilicate Glass

ZHAO Xiu-Li1, LIANG Xiao-Juan1, LUO Hong-Yan1, CHEN Zhao-Ping1, XIANG Wei-Dong1, 2   

  1. (1. College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China; 2. College of Materials Science and Engineering, Tongji University, Shanghai 201804, China)
  • Received:2012-12-24 Revised:2013-02-06 Published:2013-09-20 Online:2013-08-14
  • About author:ZHAO Xiu-Li. E-mail: xiulizhao@126.com
  • Supported by:

    National Natural Science Foundation of China (51272059); Zhejiang Province Key Scientific and Technological Innovations Team of China (2009R50010)

摘要: 以正硅酸乙酯、硼酸、金属钠为前驱体采用溶胶-凝胶法合成含Ag量子点的钠硼硅玻璃。X射线粉末衍射 (XRD) 分析Ag量子点具有立方相。通过透射电子显微镜 (TEM) 和高分辨透射电子显微镜 (HRTEM) 测定量子点的尺寸和分布, 结果显示在玻璃中量子点呈规则的球形, 并且尺寸在5~13 nm之间。紫外-可见(UV-Vis)吸收光谱仪得到Ag量子点的表面等离子体共振吸收峰大约在406 nm附近; 利用飞秒Z-scan 技术在800 nm波长处用飞秒钛宝石激光辐照对Ag量子点玻璃的非线性光学性质进行研究, 该玻璃的非线性折射率γ、非线性吸收系数β和三阶非线性极化率χ(3)分别为 –1.72×10-17 m2/W、9.96×10-11 m/W、1.01×10-11 esu。

关键词: Ag量子点, 吸收, Z-scan, 钠硼硅玻璃

Abstract: Silver quantum dots doped in sodium borosilicate glass were synthesized through Sol-Gel method using tetraethyl orthosilicate (TEOS), boracic acid, metallic sodium as precursors. X-ray powder diffraction (XRD) analyses revealed that silver quantum dots were cubic crystalline phase; size and distribution of the quantum dots were measured by transmission electron microscope (TEM) as well as high-resolution transmission electron microscope (HRTEM). The results showed that spherical shape formed uniformly in the glass, and the size of these quantum dots ranged from 5 nm to 13 nm. Ultraviolet-visible (UV-Vis) absorption spectrometer obtained surface plasma resonance (SPR) absorption peaks as that of the Ag quantum dots at about 406 nm. Nonlinear optical properties of silver quantum dots doped glass were investigated by using Z-scan technique at the wavelength of 800 nm with femtosecond Ti: sapphire laser radiation. The values of nonlinear refraction index γ, nonlinear absorption coefficient β and the third-order nonlinear optical susceptibility χ(3) of the glass were estimated to be –1.72×10-17 m2/W, 9.96×10-11 m/W, 1.01×10-11 esu, respectively.

Key words: silver quantum dots, absorption, Z-scan, sodium borosilicate glass

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