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Design of sharp bends with transformation plasmonics

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Abstract

We report a design method of surface plasmon polaritons sharp bends based on transformation optics. Plasmonic waveguide bends with different angles, which possess little radiation loss, are proposed. Transformation media can be simply achieved with homogeneous and nonmagnetic materials, which can be constructed by altering two different dielectric films. Electromagnetic simulations by a finite-element method on detailed examples have been performed to validate the designs.

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Acknowledgements

The project is supported by the National Research Foundation of Singapore (NRF-G-CRP 2007-01) and AStar (092154009).

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Correspondence to Dao Hua Zhang.

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Wang, Y., Zhang, D.H., Wang, J. et al. Design of sharp bends with transformation plasmonics. Appl. Phys. A 112, 549–553 (2013). https://doi.org/10.1007/s00339-013-7773-5

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  • DOI: https://doi.org/10.1007/s00339-013-7773-5

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