Abstract

A near-perfect dual-band circular polarizer based on bilayer twisted, single split-ring resonator structure asymmetric chiral metamaterial was proposed and investigated. The simple bilayer structure with a 90° twisted angle allows for equalizing the orthogonal components of the electric field at the output interface with a 90° phase difference for a y-polarized wave propagating along the backward (z) direction. It is found that right- and left-hand circular polarization are realized in transmissions at 7.8 and 10.1 GHz, respectively. Experiments agree well with numerical simulations, which exhibit that the polarization extinction ratio is more than 30 dB at the resonant frequencies. Further, the simple design also can be operated at the terahertz range by scaling down the geometrical parameters of the unit cell.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Compact dual-band circular polarizer using twisted Hilbert-shaped chiral metamaterial

He-Xiu Xu, Guang-Ming Wang, Mei Qing Qi, Tong Cai, and Tie Jun Cui
Opt. Express 21(21) 24912-24921 (2013)

Chiral metamaterial absorber with high selectivity for terahertz circular polarization waves

Yongzhi Cheng, Haoran Chen, Jingcheng Zhao, Xuesong Mao, and Zhengze Cheng
Opt. Mater. Express 8(5) 1399-1409 (2018)

Asymmetric chiral metamaterial circular polarizer based on four U-shaped split ring resonators

Mehmet Mutlu, Ahmet E. Akosman, Andriy E. Serebryannikov, and Ekmel Ozbay
Opt. Lett. 36(9) 1653-1655 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (4)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription