Focusing surface plasmons with a plasmonic lens

被引：518

作者：

Liu, ZW ^{[1
]}

Steele, JM ^{[1
]}

Srituravanich, W ^{[1
]}

Pikus, Y ^{[1
]}

Sun, C ^{[1
]}

Zhang, X ^{[1
]}

机构：

[1] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA

来源：

NANO LETTERS | 2005年 / 5卷 / 09期

关键词：

D O I：

10.1021/nl051013j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the focusing of surface plasmon polaritons by circular and elliptical structures milled into optically thick metallic films or plasmonic lenses. Both theoretical and experimental data for the electromagnetic nearfield is presented. The nearfield is mapped experimentally using nearfield scanning optical microscopy and plasmonic lithography. We find that the intensity at the focal points of the plasmonic lenses increases with size.

引用

页码：1726 / 1729

页数：4

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