3D stand-up metamaterials with a purely magnetic resonance at terahertz frequencies

In this paper we present a copper-based 3-dimensional (3D) stand-up metamaterial which displays a purely magnetic resonance at terahertz (THz) frequencies. A multilayer-electroplating technique is used to fabricate these arrayed structures and experimental results demonstrate a strong LC resonance at 1.38 THz with quality factor of 18.7. The successful design, fabrication and characterization of these 3D structures provides a new pathway for implementing novel electromagnetic properties at terahertz frequencies.