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Thermal detection of surface plasmons on gold nanohole arrays
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作者 ZHANG Wei LI ZhiPeng +6 位作者 GUAN ZhiQiang SHEN Hao YU WenBo He WeiDong YAN XiaoPeng LI Ping XU HongXing 《Chinese Science Bulletin》 SCIE CAS 2012年第1期68-71,共4页
We used a thin-film thermocouple to detect the thermal effect of surface plasmons excited in Au nanohole array structures.We found that the thermal electromotive force of Au film with periodic nanohole structures is t... We used a thin-film thermocouple to detect the thermal effect of surface plasmons excited in Au nanohole array structures.We found that the thermal electromotive force of Au film with periodic nanohole structures is three times greater than that of a bare Au film for 785-nm laser excitation at a given power.This effect is caused by the resonant excitation of localized surface plas- mons in the nanoholes.In addition,we found that the thermal electromotive force(EMF)of the Au film with dumbbell-like na- nohole arrays depends strongly on the incident polarization.The thermal EMF is the greatest when the excitation light is polarized perpendicular to the long axis of the dumbbell. 展开更多
关键词 纳米孔阵列结构 表面等离子体 检测 黄金 热电动势 激光激发 薄膜热电偶 纳米孔结构
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