Performance enhancement of terahertz metamaterials on ultrathin substrates for sensing applications


Tao H., Strikwerda A. C., Liu M., Mondia J. P., Ekmekci E., Fan K., ...Daha Fazla

APPLIED PHYSICS LETTERS, cilt.97, sa.26, 2010 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 97 Sayı: 26
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1063/1.3533367
  • Dergi Adı: APPLIED PHYSICS LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Süleyman Demirel Üniversitesi Adresli: Hayır

Özet

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. (C) 2010 American Institute of Physics. [doi:10.1063/1.3533367]