Abstract

Most reported terahertz devices are relatively simple to control by means of external applied electricity, light, heat, magnetism, etc. In the practical application of a terahertz system, the devices with a variety of adjustable methods are promising. In this paper, we design a rectangular-ambulatory-plane metal groove structure on apolymer polydimethylsiloxane (PDMS) substrate with graphene embedded in the metal grooves. The resonance performance of the proposed structure can be controlled by changing the external force and graphene chemical potential. Three electromagnetic-induced reflection peaks of the structure are achieved at 0.54, 0.60, and 0.63 THz with reflectivity of 89.6%, 77.1%, and 75.7%, respectively. Under the change of the applied bias voltage and external force, the reflectivity of the three reflection peaks of the resonator can be regulated freely. In addition, the proposed structure is polarization-insensitive and maintains stable terahertz reflection peaks with incident angles up to 25°.

© 2021 Optical Society of America

Full Article  |  PDF Article
More Like This
Ultra-wideband terahertz absorber based on graphene modulation

Xiaogang Li, Guang Feng, and Suben Lin
Appl. Opt. 60(11) 3170-3175 (2021)

Graphene-supported tunable bidirectional terahertz metamaterials absorbers

Jun Peng, Jin Leng, Duo Cao, Xiaoyong He, Fangting Lin, and Feng Liu
Appl. Opt. 60(22) 6520-6525 (2021)

Ultra-broadband terahertz bandpass filter with dynamically tunable attenuation based on a graphene–metal hybrid metasurface

Wenli Huang, Xiaoqing Luo, Yuanfu Lu, Fangrong Hu, and Guangyuan Li
Appl. Opt. 60(22) 6366-6370 (2021)

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

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

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 (9)

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

Equations (2)

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

Metrics