A Transmission-Type Electrically Tunable Polarizer Based on Graphene Ribbons at Terahertz Wave Band
TANG Yi-Cheng1 , ZHU Zhi-Hong1,2** , ZHANG Jian-Fa1 , GUO Chu-Cai1 , LIU Ken1 , YUAN Xiao-Dong1 , QIN Shi-Qiao1,2
1 College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 4100732 State Key Laboratory of High Performance Computing, National University of Defense Technology, Changsha 410073
Abstract ：We theoretically and numerically demonstrate that a transmission-type electrically tunable polarizer can be realized by using graphene ribbons supported on a dielectric film with a graphene sheet behind. The polarization mechanism originates from the antenna plasmon resonance of graphene stripes. The results of full-wave numerical simulations reveal that transmittance of 0.70 for one polarization and 0.0073 for another polarization can be obtained at normal incidence. The transmission-type electrically tunable polarizer provides and facilitates a variety of applications, including filtering, detecting, and imaging.
出版日期: 2015-01-20
:
52.40.Db
(Electromagnetic (nonlaser) radiation interactions with plasma)
52.40.Fd
(Plasma interactions with antennas; plasma-filled waveguides)
42.79.Ci
(Filters, zone plates, and polarizers)
引用本文:
. [J]. 中国物理快报, 2015, 32(02): 25202-025202.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/32/2/025202
或
https://cpl.iphy.ac.cn/CN/Y2015/V32/I02/25202
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2015, Vol. 32 
