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Negative coupling between defects in waveguide arrays

 
: Zeuner, J.M.; Rechtsman, M.C.; Keil, R.; Dreisow, F.; Tünnermann, A.; Nolte, S.; Szameit, A.

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Optics Letters 37 (2012), No.4, pp.533-535
ISSN: 0146-9592
English
Journal Article
Fraunhofer IOF ()

Abstract
We report on the experimental demonstration of negative coupling constants between defect guides in a waveguide lattice. We find that coupling can only be negative if the defects are negative and an odd number of lattice sites is between the defect guides.

: http://publica.fraunhofer.de/documents/N-195471.html