Near orthogonal launch of SPR modes in Au films.

@article{Canning2014NearOL,
  title={Near orthogonal launch of SPR modes in Au films.},
  author={John Canning and Akib Karim and Nikki Tzoumis and Yanzhen Tan and Rodolfo L. Patyk and Brant C. Gibson},
  journal={Optics letters},
  year={2014},
  volume={39 17},
  pages={
          5038-41
        }
}
We report the excitation of a surface plasmon resonance (SPR) close to the orthogonal axis of a gold (Au) film on borosilicate glass. Direct spectroscopic measurement of SPR shifts using different liquids are made at ∼5° incidence within a reflection spectrophotometer. The proposed mechanism to establish coupling and plasmon localization is the scattering of light able to penetrate across the film at the interfaces. 

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