All-Dielectric Metamaterials Using III–V Semiconductors

All-dielectric metamaterials consist of arrays of high-index, subwavelength-size Mie resonators that enable manipulation of the electromagnetic permittivity and permeability, but with much lower loss at optical frequencies than their metallic metamaterial counterparts. Most efforts at wavelengths shorter than the mid-infrared, however, have employed silicon, which lacks second-order optical nonlinearities and is not an efficient light emitter. Recently, our group proposed a new class of dielectric metamaterials based upon III–V semiconductors that exhibit strong intrinsic optical nonlinearities and allow for full integration with optoelectronic functionality.