Authors: Zao Yi Miao Liu Jiangshan Luo Xibin Xu Weibin Zhang Yong Yi Tao Duan Chaoyang Wang Yongjian Tang
Publish Date: 2016/12/03
Volume: 12, Issue: 6, Pages: 1929-1937
Abstract
The optical properties and the local electromagnetic field enhancement of a compound structure with rectangular nanohole arrays in AuinterlayerAu multilayer films are numerically studied using finitedifference time domain method We investigated some of structure parameters that influence the optical properties of the compound nanostructure Adjustment of the length of rectangular nanoholes L the polarization direction θ the thickness of interlayer SiO2 H2 and the materials in the interlayer can change the absorption intensity and the resonance peaks An interlayer is located between the double Au films AuinterlayerAu multilayer films with the function of confining local electromagnetic field The simulation of the electromagnetic field distribution shows that the location of the local electromagnetic field enhancement can specify the different resonance patterns The proposed compound nanostructure will be promising for application in portable nanoplasmonic multisensing and imaging
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