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    Terahertz polarization converter based on all-dielectric high birefringence metamaterial with elliptical air holes

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    Optics%20Communications-2018-Terahertz%20polarization%20converter.pdf
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    Type
    Article
    Authors
    Zi, Jianchen
    Xu, Quan
    Wang, Qiu
    Tian, Chunxiu
    Li, Yanfeng cc
    Zhang, Xixiang cc
    Han, Jiaguang cc
    Zhang, Weili
    KAUST Department
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2018-02-15
    Online Publication Date
    2018-02-15
    Print Publication Date
    2018-06
    Permanent link to this record
    http://hdl.handle.net/10754/627146
    
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    Abstract
    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 BV
    Journal
    Optics Communications
    DOI
    10.1016/j.optcom.2018.02.012
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0030401818301007
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.optcom.2018.02.012
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

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