Optical Nonlinearity of Mesoporous Silica Thin Films Embedded with Gold Nanoparticles

被引：0
|
作者：
Fang, Jingyue [1 ]
Qin, Shiqiao [1 ]
Zhang, Xueao [1 ]
Wang, Guang [1 ]
Chen, Wei [1 ]
Nie, Yongming [1 ]
Fang, Liang [2 ]
Chang, Shengli [1 ]
机构：
[1] Natl Univ Def Technol, Sch Sci, Changsha 410073, Hunan, Peoples R China
[2] Natl Univ Def Technol, Sch Comp, Changsha 410073, Hunan, Peoples R China
来源：
INTEGRATED FERROELECTRICS | 2012年 / 138卷
基金：
中国国家自然科学基金;
关键词：
Nanocomposites; gold nanoparticles; thin films; nonlinear refractive index; TEMPLATE SYNTHESIS; Z-SCAN; ARRAYS; PLATINUM;
D O I：
10.1080/10584587.2012.688420
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The mesoporous silica thin films (MSTFs) synthesized by evaporation-induced self-assembly were loaded with gold nanoparticles (GNPs). The TEM and XRD characterizations showed that the template of MSTF possessed a well-ordered mesostructure, and GNPs can be well crystallized in the thin film by neutralization and hydrogen-reduction reactions. The z-scan technique was used for studying the nonlinear optical properties of the GNPs/MSTF nanocomposite. The results showed that this kind of material was possessed of a relatively feeble nonlinear absorption but an obvious nonlinear refraction. The nonlinear refractive index was estimated to be 7.9 x 10(-11) cm(2)/W and the theoretical fitting well matched with the measured data.
引用
收藏
页码：16 / 22
页数：7
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