Design of planar chiral metamaterials for near-infrared regime

Kaya, Sabri; TÜRKMEN, MUSTAFA; Topaktas, Omer

doi:10.1007/s00339-016-0686-3

Design of planar chiral metamaterials for near-infrared regime

Atıf İçin Kopyala

Kaya S., TÜRKMEN M., Topaktas O.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, cilt.123, sa.1, 2017 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 123 Sayı: 1
Basım Tarihi: 2017
Doi Numarası: 10.1007/s00339-016-0686-3
Dergi Adı: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Erciyes Üniversitesi Adresli: Evet

Özet

Planar chiral metamaterials (PCMs) comprising double-layer dielectric-metal-dielectric resonant structures in the shape of a windmill are presented for near-infrared regime. The circular dichroism is retrieved from transmission spectra. Effects of used materials on circular dichroism characteristics of PCM arrays are investigated for the first time. The dependence of spectral characteristics on the geometrical parameters of the PCMs is analyzed by the finite-difference time-domain method. The observations indicated that the circular dichroism characteristics of the proposed PCM arrays are strongly dependent on the type of metal and dielectric materials. Due to the enhanced chiroptical near-field response and tunable spectral behavior, proposed PCM arrays may have potential for biosensing applications of chiral biomolecules.