III–V Semiconductor Nanoresonators—A New Strategy for Passive, Active, and Nonlinear All‐Dielectric Metamaterials

2D and multilayer dielectric metamaterials made from III–V semiconductors are demonstrated using a monolithic fabrication process. The resulting structures could be used to recompress chirped femtosecond optical pulses and in a variety of other optical applications requiring low loss. These III–V all-dielectric metamaterials could enable novel active applications such as efficient nonlinear frequency converters, light emitters, detectors, and modulators.