Launching and decoupling surface plasmons via micro-gratings

被引:161
作者
Devaux, E
Ebbesen, TW
Weeber, JC
Dereux, A
机构
[1] Univ Strasbourg 1, ISIS, Lab Nanostruct, F-67083 Strasbourg, France
[2] Univ Bourgogne, Lab Phys Opt Submicron, F-21078 Dijon, France
关键词
D O I
10.1063/1.1634379
中图分类号
O59 [应用物理学];
学科分类号
摘要
Controlling separately the launching of surface plasmons and their recovery as freely propagating light is essential for the development of surface plasmon photonic circuits. With this target in mind, we have studied in the near-field the launching of surface plasmons in a well-defined direction by micro-arrays of subwavelength holes milled in a thick metal film. We show that surface plasmons can then be converted back to freely propagating light by means of another appropriately designed array. These results not only provide insight into the efficient decoupling of surface plasmons but also into their role in the enhanced transmission mechanism. (C) 2003 American Institute of Physics.
引用
收藏
页码:4936 / 4938
页数:3
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