Performance enhancement of terahertz metamaterials on ultrathin substrates for sensing applications
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]