TITLE

Dynamic surface plasmon patterns generated by reconfigurable “cogwheel-shaped” beams

AUTHOR(S)
Hu, Z. J.; Yuan, X.-C.; Zhu, S. W.; Yuan, G. H.; Tan, P. S.; Lin, J.; Wang, Q.
PUB. DATE
November 2008
SOURCE
Applied Physics Letters;11/3/2008, Vol. 93 Issue 18, p181102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A method for generating and controlling dynamic surface plasmon patterns by highly focused “cogwheel-shaped” beams is studied theoretically and experimentally. The “cogwheel” beams are formed by collinear superposition of two Laguerre–Gaussian beams with equal but opposite topological charges. It is shown that the patterned surface plasmons can be reconfigured locally with advantages over patterned metallic islands.
ACCESSION #
35279240

 

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