Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Tunable broadband cross polarization converter based on a graphene sheet with a T-shaped carved-hollow array

Not Accessible

Your library or personal account may give you access

Abstract

We propose a tunable broadband reflective cross polarization converter (CPC) composed of a graphene sheet with a T-shaped carved-hollow array. In the mid-infrared region, cross polarization conversion with 5.17 THz bandwidth is achieved due to the superimposition of the two reflection components with a phase difference of nearly 180°. The polarization conversion ratio is larger than 80% in this broadband range, and the fractional bandwidth is 40%. The physical mechanism of CPC is attributed to the excitation of symmetric and antisymmetric graphene surface plasmons. The CPC broadband can always be retained when the incident angle increases from 0° to 20°, and the polarization angle increases from 40° to 50°. Also, the tunable responses of the reflective polarizer with Fermi energy and electron scattering time are discussed. Our design can be widely applied to adjustable broadband polarization conversion.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Broadband of linear-to-linear and double-band of linear-to-circular polarization converter based on a graphene sheet with a π-shaped hollow array

Qi Qiao, Yueke Wang, Guofeng Yang, Yu Fu, and Yongqi Liu
Opt. Mater. Express 11(9) 2952-2965 (2021)

Mid-infrared tunable triple-band cross-polarization converter based on a periodic ellipse graphene patch with a slit

Lanlan Zhang, Ping Li, and Xiaowei Song
J. Opt. Soc. Am. B 37(7) 1921-1926 (2020)

Tunable mid-infrared dual-band and broadband cross-polarization converters based on U-shaped graphene metamaterials

Fang Zeng, Longfang Ye, Li Li, Zhihui Wang, Wei Zhao, and Yong Zhang
Opt. Express 27(23) 33826-33839 (2019)

Data Availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Tables (1)

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

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

Equations (9)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved