Experimental analysis of surface plasmon behavior in metallic circular slits

被引：26

作者：

Chang, Chin-Kai

Lin, Ding-Zheng

Yeh, Chau-Shioung

Lee, Chih-Kung ^{[1
]}

Chang, Yu-Chia

Lin, Ming-Wei

Yeh, Ji-Tian

Liu, Jung-Ming

机构：

[1] Natl Taiwan Univ, Inst Appl Mech, Taipei 10617, Taiwan

[2] Ind Technol Res Inst, Mat & Chem Res Lab, Hsinchu 31040, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 06期

关键词：

D O I：

10.1063/1.2471966

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using a focused ion beam, the authors fabricated metallic circular slits onto a glass substrate coated with silver film. The influence of the number of slits and the focusing light phenomena was investigated by capturing the light transmitted through the circular slits. They demonstrate experimentally that the circular grating formed by a set of periodical slits can excite both stronger surface plasmon (SP) and localized surface plasmon as the number of slits increases. They found that the SP tended to congregate at the center of the circular grating, and that the reemitted light could be used to achieve a focusing phenomenon.

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页数：3

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