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Maximizing scattering by coated spheres with radial anisotropy

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Abstract

The plasmonic resonant condition, associated with scattering maximization, is analytically established for core-shell spheres with radial anisotropy in the small-radii and low-dissipation limit. A generalized expression of the effective permittivity of the scatterers is also formulated. The derived closed-form results are validated with full-wave numerical analysis. The effects of dielectric anisotropy, mode of resonance, size, and loss are further discussed.

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Acknowledgements

This work is supported by a NUS research scholarship awarded to H.-Z. Liu. Useful technical discussions with the staff of the Electronics & Photonics Division, IHPC are also thankfully acknowledged.

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Liu, HZ., Mouthaan, K., Zouhdi, S. et al. Maximizing scattering by coated spheres with radial anisotropy. Appl. Phys. A 109, 189–196 (2012). https://doi.org/10.1007/s00339-012-7032-1

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  • DOI: https://doi.org/10.1007/s00339-012-7032-1

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