TITLE

Launching and decoupling surface plasmons via micro-gratings

AUTHOR(S)
Devaux, Eloise; Ebbesen, Thomas W.; Weeber, Jean-Claude; Dereux, Alain
PUB. DATE
December 2003
SOURCE
Applied Physics Letters;12/15/2003, Vol. 83 Issue 24, p4936
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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. © 2003 American Institute of Physics.
ACCESSION #
11649679

 

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