Abstract
An isotropic reflector with near-unity reflectivity is shown based on the three-dimensional monolayer microparticles consisting of ceramic cube arrays. Numerical results show that a broad reflective band with high performance can be excited in an array of dielectric cubes. Meanwhile, from the calculated data, it is observed that the designed reflector is independent of the incidence angle for the transverse electric and transverse magnetic polarizations. In principle, high reflectivity can be realized at arbitrary wavelengths of interest where only a single dielectric layer is required. This work may provide a convenient route to design adaptive metamaterials.
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