Metamaterials: Tailorable Zero‐Phase Delay of Subwavelength Particles toward Miniaturized Wave Manipulation Devices (Adv. Mater. 40/2015)

Adjustable zero phase delay and equiphase-control are demonstrated by Q. Zhao and co-workers in single and multilayer dielectric particle arrays with high index and low loss. As shown on page 6187, the polarization-independent near-zero permeability is the origin of the wave-control near the first Mie magnetic resonance. The proposed design paves the way for subwavelength devices and opens up new avenues for miniaturization and integration of terahertz and optical components.