Tailorable Zero-Phase Delay of Subwavelength Particles toward Miniaturized Wave Manipulation Devices

Abstract

Adjustable zero-phase delay and equiphase control are demonstrated in single and multilayer dielectric particle arrays with high index and low loss. 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 the miniaturization and integration of THz and optical components.

Keywords: metamaterials; subwavelength dielectric particles; temperature tunability; wave manipulation; zero-phase delay.