TITLE

Large positive and negative lateral optical beam displacements due to surface plasmon resonance

AUTHOR(S)
Xiaobo Yin; Hesselink, Lambertus; Zhaowei Liu; Fang, Nicholas; Xiang Zhang
PUB. DATE
July 2004
SOURCE
Applied Physics Letters;7/19/2004, Vol. 85 Issue 3, p372
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report abnormally large positive and negative lateral optical beam shifts at a metal–air interface when the surface plasmon resonance of the metal is excited. The optimal thickness for minimal resonant reflection is identified as the critical thickness above which a negative beam displacement is observed. Experimental results show good agreement with theoretical predictions and the large observed bidirectional beam displacements also indicate the existence of forward and backward surface propagating waves at the surface plasmon resonance of the metal.
ACCESSION #
13791217

 

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