Abstract
We present the design for an absorbing metamaterial (MM) with near unity absorbance . Our structure consists of two MM resonators that couple separately to electric and magnetic fields so as to absorb all incident radiation within a single unit cell layer. We fabricate, characterize, and analyze a MM absorber with a slightly lower predicted of 96%. Unlike conventional absorbers, our MM consists solely of metallic elements. The substrate can therefore be optimized for other parameters of interest. We experimentally demonstrate a peak greater than 88% at 11.5 GHz.
- Received 6 November 2007
DOI:https://doi.org/10.1103/PhysRevLett.100.207402
©2008 American Physical Society