Add to BibSonomy
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 ArticleMore Like This
Jun Peng, Jin Leng, Duo Cao, Xiaoyong He, Fangting Lin, and Feng Liu
Appl. Opt. 60(22) 6520-6525 (2021)
Xiaogang Li, Guang Feng, and Suben Lin
Appl. Opt. 60(11) 3170-3175 (2021)
Chunyu Zhang, Heng Zhang, Fang Ling, and Bin Zhang
Appl. Opt. 60(16) 4835-4840 (2021)