Scalable variable-index elasto-optic metamaterials for macroscopic optical components and devices

Scalable variable-index elasto-optic metamaterials for macroscopic optical components and devices

Optical metamaterials with an artificial subwavelength structure offer new approaches to implement advanced optical devices. However, some of the biggest challenges associated with the development of metamaterials in the visible spectrum are the high costs and slow production speeds of the nanofabrication processes. Here, we demonstrate a macroscale (>35 mm) transformation-optics wave bender (2...

Optical negative-index metamaterials

Progress in Metamaterials for Optical Devices

We review recent progress in optical metamaterials and demonstrate our sample with negative index behavior at the shortest wavelength so far (710 nm). We discuss the impact of fabrication limitations on the performance of metamaterials. ©2008 Optical Society of America OCIS codes: (160.3918) Metamaterials; (160.4236) Nanomaterials; (160.4670) Optical materials.

Negative index of refraction in optical metamaterials.

A double-periodic array of pairs of parallel gold nanorods is shown to have a negative refractive index in the optical range. Such behavior results from the plasmon resonance in the pairs of nanorods for both the electric and the magnetic components of light. The refractive index is retrieved from direct phase and amplitude measurements for transmission and reflection, which are all in excellen...

Theory of fishnet negative-index optical metamaterials.

We theoretically study fishnet metamaterials at optical frequencies. In contrast with earlier works, we provide a microscopic description by tracking the transversal and longitudinal flows of energy through the fishnet mesh composed of intersecting subwavelength plasmonic waveguides. The analysis is supported by a semianalytical model based on surface-plasmon coupled-mode equations, which provi...