Abstract
We fabricated and tested periodic metal (Ag)–dielectric ( or ) multilayers with transparency bands in the visible range. For samples with interfaces, the optical properties exhibited relatively poor predictability, likely due to oxidation of the Ag layers. -based multilayers were found to be more predictable and stable, but the relatively low refractive index of limits their inherent transparency and pass-band bandwidth. We show that termination of the multilayer with a single high-index layer reduces the admittance mismatch with the ambient media, and thus improves the properties of the transparency band.
© 2013 Optical Society of America
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