Affordable Access

Access to the full text

Strong influence of packing density in terahertz metamaterials

Authors
  • Singh, Ranjan
  • Rockstuhl, Carsten
  • Zhang, Weili
Type
Preprint
Publication Date
Aug 12, 2010
Submission Date
Aug 12, 2010
Identifiers
DOI: 10.1063/1.3525169
Source
arXiv
License
Yellow
External links

Abstract

We investigate the response of terahertz metamaterials made of split-ring resonators depending on the unit cell density. It is shown that the fundamental resonance has its highest Q factor for a period of one-third the resonance wavelength. Increasing or decreasing the period from that optimal period reduces the Q factor. All observations are explained by understanding radiative coupling as the dominant loss mechanism at low densities, whereas the strong inter SRR coupling enhances non-radiative losses at high densities. Our results allow designing metamaterials with adjustable Q factors and possibly suggesting that an optimal package density exists to induce the strongest dispersion.

Report this publication

Statistics

Seen <100 times