Performance enhancement of terahertz metamaterials on ultrathin substrates for sensing applications


Journal Article

We design, fabricate, and characterize split-ring resonator (SRR) based planar terahertz metamaterials (MMs) on ultrathin silicon nitride substrates for biosensing applications. Proof-of-principle demonstration of increased sensitivity in thin substrate SRR-MMs is shown by detection of doped and undoped protein thin films (silk fibroin) of various thicknesses and by monitoring transmission changes using terahertz time-domain spectroscopy. SRR-MMs fabricated on thin film substrates show significantly better performance than identical SRR-MMs fabricated on bulk silicon substrates paving the way for improved biological and chemical sensing applications. © 2010 American Institute of Physics.

Full Text

Duke Authors

Cited Authors

  • Tao, H; Strikwerda, AC; Liu, M; Mondia, JP; Ekmekci, E; Fan, K; Kaplan, DL; Padilla, WJ; Zhang, X; Averitt, RD; Omenetto, FG

Published Date

  • December 27, 2010

Published In

Volume / Issue

  • 97 / 26

International Standard Serial Number (ISSN)

  • 0003-6951

Digital Object Identifier (DOI)

  • 10.1063/1.3533367

Citation Source

  • Scopus