New-Generation Chiral Metamaterials Based on Rectangular Split Ring Resonators With Small and Constant Chirality Over a Certain Frequency Band

SABAH C., Dincer F., Karaaslan M., Akgol O., Demirel E., Unal E.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.62, no.11, pp.5745-5751, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 62 Issue: 11
  • Publication Date: 2014
  • Doi Number: 10.1109/tap.2014.2356206
  • Journal Name: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.5745-5751
  • Keywords: Chiral metamaterials, new-generation chiral metamaterials (MTMs), polarization control, rectangular split ring resonators (SRRs), small chirality, NEGATIVE-INDEX, MAGNETIC RESPONSE, DIELECTRIC SLABS, POLARIZATION, TERAHERTZ, DESIGN, TRANSMISSION, REFRACTION
  • Middle East Technical University Northern Cyprus Campus Affiliated: Yes

Abstract

Chiral metamaterials (MTMs), a new class of MTMs, provide a simpler solution for obtaining negative refraction and dynamic electromagnetic response. Many research groups have been studying chiral MTMs asking for strong chiral behaviors such as optical activity and circular dichroism. These studies have generally focused on the properties of a large chirality and circular dichroism. However, small and constant chirality over a certain frequency band have not been queried so far in the literature. In fact, this area is mostly ignored by the researchers. This study numerically and experimentally focuses on small and constant chirality with a new-generation planar chiral MTM based on rectangular split ring resonators (SRRs), in details by using two different geometries. We have successfully obtained small chirality values by using the proposed designs, which can be easily integrated into many interesting applications such as transmission and antireflection filters or polarization control devices.