Multi-band metamaterial absorber topology for infrared frequency regime

Mulla B., Sabah C.

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, cilt.86, ss.44-51, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 86
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.physe.2016.10.003
  • Dergi Adı: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.44-51
  • Anahtar Kelimeler: Metamaterial, Topology, Multiband, Perfect absorption, Solar energy, INDEPENDENT PERFECT ABSORBER, SOLAR-CELL APPLICATIONS, WIDE-ANGLE, DESIGN
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this paper, a new multiband metamaterial absorber design is proposed and the numerical characterization is carried out. The design is composed of three layers with differently sized quadruplets in which the interaction among them causes the multiband absorption response in the infrared frequency regime. In order to characterize the absorber. and explain the multiband topology, some parametric studies with respect to the dimensions of the structure are carried out and the contributions of the quadruplets to the absorption spectrum are analyzed. According to the results, it is found that the proposed metamaterial absorber has five bands in the infrared frequency regime with the absorption levels of: 98.90%, 99.39%, 86.46%, 92.80% and 97.96%. Moreover, the polarization dependency of the structure is examined and it is found that the design operates well as a perfect absorber with polarization independency in the studied frequency range.