Abstract

In this work a composed chiral metamaterial structure constituted by the combination of a composite chiral metamaterial and a modified fishnet structure is presented and numerically analyzed. This new fishnet-like chiral metamaterial features two wide frequency bands wherein the refractive indices are negative and exhibits lower losses than its constituents do.

Highlights

  • Chiral metamaterials (CMM) provide an alternative route to negative refraction [1]

  • A way of partially decreasing these losses is provided by using composite CMMs (CCMM) [2]

  • The fishnet-like chiral metamaterial (FCMM) structure has been characterized by means of the

Read more

Summary

INTRODUCTION

Chiral metamaterials (CMM) provide an alternative route to negative refraction [1]. Thanks to their chirality parameter, CMMs can exhibit negative refractive index, n±, for the right(+) or left-handed (−) circularly polarized eigenwaves. With the aim of going a step further on the losses reduction, an enhanced evolution of the aforementioned mentioned structure is presented in this communication This new design, called fishnet-like chiral metamaterial (FCMM), displays C4 symmetry and combines the CCMM of [3] with a low losses fishnet arrangement [4]-[5]. This novel combination improves the response of [3] by providing negative refractive indices for each eigenwave along two wider frequency bands (0.8 and 0.9 GHz) and a higher FoM, greater than 50 in the 60% of each frequency band

FISHNET LIKE CHIRAL METAMATERIAL
Analysis of FCMM constituents
Analysis of the FCMM structure
Findings
CONCLUSIONS
Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.