Dual-band cross polarization converter in bi-layered complementary chiral metamaterial

Abstract

In this article, a new chiral metamaterial with giant optical activity (90°) around 225 and 285 THz has been proposed which can be acted as a dual-band cross polarization converter (CPC). During the frequency range of proposed CPC, the maximum transmission coefficient and cross polarization conversion efficiency are up to 0.55 and 0.998, respectively. Importantly, the corresponding ellipticities are almost zero at 225 and 285 THz.

Keywords:

• CMM
• optical activity
• ellipticity
• CPC

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work is supported by the National Natural Science Foundation of China [grant number 61275070]; the Shanghai Natural Science Fund of Shanghai [grant number 15ZR1415900].