Gyroid Optical Metamaterials: Calculating the Effective Permittivity of Multidomain Samples.

ABSTRACT: Gold gyroid optical metamaterials are known to possess a reduced plasma frequency and linear dichroism imparted by their intricate subwavelength single gyroid morphology. The anisotropic optical properties are, however, only evident when a large individual gyroid domain is investigated. Multidomain gyroid metamaterials, fabricated using a polyisoprene-b-polystyrene-b-poly(ethylene oxide) triblock terpolymer and consisting of multiple small gyroid domains with random orientation and handedness, instead exhibit isotropic optical properties. Comparing three effective medium models, we here show that the specular reflectance spectra of such multidomain gyroid optical metamaterials can be accurately modeled over a broad range of incident angles by a Bruggeman effective medium cons

SUBMITTER: Dolan JA 

PROVIDER: S-EPMC5073949 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature