Influence of surface roughness on surface plasmon resonance phenomenon of gold film  

作　　者：杨志韬 刘昌健 高亚臣 王纪钰 杨文龙 

机构地区：[1]Postdoctoral Mobile Research Station of the School of Electronic Engineering,Heilongjiang University [2]School of Applied Sciences,Harbin University of Science and Technology [3]Key Laboratory of Electronics Engineering,College of Heilongjiang Province,Heilongjiang University

出　　处：《Chinese Optics Letters》2016年第4期78-80,共3页中国光学快报（英文版）

基　　金：supported by the Heilongjiang Postdoctoral Science Foundation(No.LBH-Z12227);the National Natural Science Foundation of China(Nos.61275117, 51301055,61177079,and 61205071);the Heilongjiang Province Science Foundation(No.F201112);the Foundation of the Key Laboratory of Electronics Engineering,College of Heilongjiang,Province of China

摘　　要：We experimentally investigate the effects of the surface roughness of gold thin films on the properties of surface plasmon resonance. By annealing at different temperatures, film samples with different surface morphologies are obtained. Specifically, due to the diffusion of the gold atoms towards the films＇ surface, the surface root- mean-square roughness decreases with the increasing annealing temperature. Then, we measure the surface plasmon resonance of the samples. The results show that the resonance angle of the surface plasmon resonance is sensitive to the root-mean-square roughness, and it gradually decreases by reducing the surface root-mean-square roughness.We experimentally investigate the effects of the surface roughness of gold thin films on the properties of surface plasmon resonance. By annealing at different temperatures, film samples with different surface morphologies are obtained. Specifically, due to the diffusion of the gold atoms towards the films＇ surface, the surface root- mean-square roughness decreases with the increasing annealing temperature. Then, we measure the surface plasmon resonance of the samples. The results show that the resonance angle of the surface plasmon resonance is sensitive to the root-mean-square roughness, and it gradually decreases by reducing the surface root-mean-square roughness.

关 键 词：GOLD PLASMONS RESONANCE Surface plasmon resonance Thin films 

分 类 号：O53[理学—等离子体物理]