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Polarization tomography of metallic nanohole arrays

E. Altewischer·C. Genet·M. P. van Exter·J. P. Woerdman·P. F. A. Alkemade·A. van Zuuk·E. W. J. M. van der Drift
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Abstract

We report polarization tomography experiments on metallic nanohole arrays with square and hexagonal symmetry. As a main result, we find that a fully polarized input beam is partly depolarized after transmission through a nanohole array. This loss of polarization coherence is found to be anisotropic, i.e. it depends on the polarization state of the input beam. The depolarization is ascribed to a combination of two factors: i) the nonlocal response of the array due to surface plasmon propagation, ii) the non-plane wave nature of a practical input beam.

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E. Altewischer, C. Genet, M. P. van Exter, J. P. Woerdman, P. F. A. Alkemade, A. van Zuuk, E. W. J. M. van der Drift. 2004-05-26. Polarization tomography of metallic nanohole arrays. https://doi.org/10.1364/ol.30.000090

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