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Metamaterial Coatings for Broadband Asymmetric Mirrors

Aiqing Chen·Keisuke Hasegawa·Miriam Deutsch·Viktor A. Podolskiy
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Abstract

We report on design and fabrication of nano-composite metal-dielectric thin film coatings with high reflectance asymmetries. Applying basic dispersion engineering principles to model a broadband and large reflectance asymmetry, we obtain a model dielectric function for the metamaterial film, closely resembling the effective permittivity of disordered metal-dielectric nano-composites. Coatings realized using disordered nanocrystalline silver films deposited on glass substrates confirm the theoretical predictions, exhibiting symmetric transmittance, large reflectance asymmetries and a unique flat reflectance asymmetry.

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Aiqing Chen, Keisuke Hasegawa, Miriam Deutsch, Viktor A. Podolskiy. 2007-03-10. Metamaterial Coatings for Broadband Asymmetric Mirrors. https://doi.org/10.1364/ol.32.001770

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