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

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

2011-10-14

arxiv.org/abs/1110.3231v1

Physics

Optics

4 figures + 1 supplementary document with 3 figures

Scientific paper

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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