Field Correlations in Surface Plasmon Speckle

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 statisti...

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Bibliographic Details
Published in:	Scientific reports Vol. 9; no. 1; p. 8359
Main Author:	Foreman, Matthew R.
Format:	Journal Article
Language:	English
Published:	London Nature Publishing Group UK 07-06-2019 Nature Publishing Group
Subjects:	639/624/400/1021 639/766/400/1021 Electric fields Humanities and Social Sciences multidisciplinary Science Science (multidisciplinary)
Online Access:	Get full text
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Summary:	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.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2045-2322 2045-2322
DOI:	10.1038/s41598-019-44780-5