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Field Correlations in Surface Plasmon Speckle.


ABSTRACT: In this work fluctuations in the electric field of surface plasmon polaritons undergoing random scattering on a rough metallic surface are considered. A rigorous closed form analytic expression is derived describing second order correlations in the resulting plasmon speckle pattern assuming statistically stationary and isotropic roughness. Partially coherent planar Schell-model source fields can also be described within the developed framework. Behaviour of the three-dimensional degree of cross polarisation and spectral degree of coherence is also discussed. Expressions derived take full account of dissipation in the metal with non-universal behaviour exhibited within the correlation length of the surface and source fields.

SUBMITTER: Foreman MR 

PROVIDER: S-EPMC6555795 | biostudies-literature |

REPOSITORIES: biostudies-literature

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