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

ABSTRACT: 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 (293 mm²) and Luneburg lens (855 mm²) in the broadband white-light visible wavelength range using the concept of elasto-optic metamaterials that combines optics and solid mechanics. Our metamaterials consist of mesoscopically homogeneous chunks of bulk aerogels with superior, broadband optical transparency across the visible spectrum and an adjustable, stress-tuneable refractive i

SUBMITTER: Shin D 

PROVIDER: S-EPMC5510221 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature