Nonlinear optical properties of Au nanoparticles colloidal system: Local and nonlocal responses

被引：48
|
作者：
Souza, Rogerio F. [2 ]
Alencar, Marcio A. R. C. [1 ]
da Silva, Eid C. [3 ]
Meneghetti, Mario R. [3 ]
Hickmann, Jandir M. [1 ]
机构：
[1] Univ Fed Alagoas, Inst Fis, Opt Mat Grp OPTMA, BR-57061970 Maceio, AL, Brazil
[2] CEFET, Dept Elect, Maceio, AL, Brazil
[3] Univ Fed Alagoas, Inst Quim & Biotechnol, Maceio, AL, Brazil
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 20期
关键词：
D O I：
10.1063/1.2929385
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Z-scan revealed thermal and electronic contributions for the nonlinear refractive index of highly stable colloid containing different concentrations of gold nanoparticles. Large enhancement factors were observed for values of n(2) and dn/dT of the colloid, due to the presence of the nanoparticles. Our results suggest that thermal effects will play an important role in the development of photonic applications involving nanostructured materials and in the investigation of nonlocal nonlinear phenomena. (c) 2008 American Institute of Physics.
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页数：3
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