Single-layer terahertz metamaterials with bulk optical constants


Journal Article

We investigate the conditions under which single layer metamaterials may be described by bulk optical constants. Terahertz time domain spectroscopy is utilized to investigate two types of geometries, both with two different sizes of embedding dielectric-cubic and tetragonal unit cells. The tetragonal metamaterials are shown to yield layer dependent optical constants, whereas the cubic metamaterials yielded layer independent optical constants. We establish guidelines for when ε and μ can be used as material parameters for single layer metamaterials. Experimental results at terahertz frequencies are presented and supported by full wave three-dimensional electromagnetic simulations. © 2012 American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Chen, WC; Totachawattana, A; Fan, K; Ponsetto, JL; Strikwerda, AC; Zhang, X; Averitt, RD; Padilla, WJ

Published Date

  • January 17, 2012

Published In

Volume / Issue

  • 85 / 3

Electronic International Standard Serial Number (EISSN)

  • 1550-235X

International Standard Serial Number (ISSN)

  • 1098-0121

Digital Object Identifier (DOI)

  • 10.1103/PhysRevB.85.035112

Citation Source

  • Scopus