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arXiv · 1110.3231

Negative refraction in Al:ZnO/ZnO metamaterial in the near-infrared

Gururaj V. Naik·Jingjing Liu·Alexander V. Kildishev·Vladimir M. Shalaev·Alexandra Boltasseva
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Abstract

Noble metals such as gold and silver are the primary metallic building blocks of metamaterial devices. Making subwavelength-sized structural elements from these metals seriously limits the optical performance of a device, however, and complicates the manufacturing process of nearly all metamaterial devices in the optical wavelength range. As an alternative to noble metals, we propose to use heavily-doped oxide semiconductors that offer both functional and fabrication advantages in the near-infrared. In this letter, we report an experimental demonstration of negative refraction in a near-infrared metamaterial device that is designed and fabricated using aluminum-doped zinc oxide.

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Gururaj V. Naik, Jingjing Liu, Alexander V. Kildishev, Vladimir M. Shalaev, Alexandra Boltasseva. 2011-10-14. Negative refraction in Al:ZnO/ZnO metamaterial in the near-infrared. https://doi.org/10.1073/pnas.1121517109

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