Terahertz polarization converter based on all-dielectric high birefringence metamaterial with elliptical air holes
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ArticleAuthors
Zi, JianchenXu, Quan
Wang, Qiu
Tian, Chunxiu
Li, Yanfeng

Zhang, Xixiang

Han, Jiaguang

Zhang, Weili
KAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Date
2018-02-15Online Publication Date
2018-02-15Print Publication Date
2018-06Permanent link to this record
http://hdl.handle.net/10754/627146
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Metamaterials have been widely applied in the polarization conversion of terahertz (THz) waves. However, common plasmonic metamaterials usually work as reflective devices and have low transmissions. All-dielectric metamaterials can overcome these shortcomings. An all-dielectric metamaterial based on silicon with elliptical air holes is reported to achieve high artificial birefringence at THz frequencies. Simulations show that with appropriate structural parameters the birefringence of the dielectric metamaterial can remain flat and is above 0.7 within a broad band. Moreover, the metamaterial can be designed as a broadband quarter wave plate. A sample metamaterial was fabricated and tested to prove the validity of the simulations, and the sample could work as a quarter wave plate at 1.76 THz. The all-dielectric metamaterial that we proposed is of great significance for high performance THz polarization converters.Citation
Zi J, Xu Q, Wang Q, Tian C, Li Y, et al. (2018) Terahertz polarization converter based on all-dielectric high birefringence metamaterial with elliptical air holes. Optics Communications 416: 130–136. Available: http://dx.doi.org/10.1016/j.optcom.2018.02.012.Sponsors
This work was supported by the National Basic Research Program of China (2014CB339800), the National Natural Science Foundation of China (61422509, 61622505, 61427814, 61377047 and 61420106006), the Program for Changjiang Scholars and Innovative Research Team in University (IRT13033), the Cooperative Innovation Center of Terahertz Science , and the U.S. National Science foundation (ECCS-1232081).Publisher
Elsevier BVJournal
Optics CommunicationsAdditional Links
http://www.sciencedirect.com/science/article/pii/S0030401818301007ae974a485f413a2113503eed53cd6c53
10.1016/j.optcom.2018.02.012