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20 April 2006 Cross-polarization coupling of Laguerre-Gaussian beam modes at isotropic interfaces
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Abstract
Excitation and cancellation of higher-order elegant Hermite-Gaussian and Laguerre-Gaussian beams under normal incidence at isotropic, lossless, dielectric interfaces are analysed. It is shown that such phenomena are originated in the cross-polarization coupling between orthogonal polarization components of the beams and depend qualitatively on interrelations between beam field spatial distribution and beam polarization. For Laguerre-Gaussian beams these interrelations associate beam orbital and spin angular momenta. Analytic description confirmed by numerical simulations is given for transmission of two types of beams: Hermite-Gaussians of linear polarization and Laguerre-Gaussians of circular polarization.
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Wojciech Nasalski and Yves Pagani "Cross-polarization coupling of Laguerre-Gaussian beam modes at isotropic interfaces", Proc. SPIE 6195, Nanophotonics, 61950L (20 April 2006); https://doi.org/10.1117/12.663040
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