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Numerical simulations of terahertz double-negative metamaterial with isotropic-like fishnet structure |
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| Authors: | P Ding EJ Liang WQ Hu L Zhang Q Zhou QZ Xue |
| Institution: | aSchool of Physical Science & Engineering and Key Laboratory of Materials Physics of Ministry of Education of China, Zhengzhou University, Zhengzhou 450052, China;bDepartment of Mathematics & Physics, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China;cDepartment of applied physics, Donghua University, Shanghai 201620, China;dInstitute of electronics, Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | The isotropic-like fishnet metamaterial with an array of cross-shaped holes penetrating through the multiple layers has been numerically studied in the terahertz regime. Its left-handed properties are described by the retrieved effect media parameters and validated by the simulation of a wedge-shaped model. The influences of the various geometrical parameters on the electromagnetic response and the left-handed performance are investigated. This isotropic-like fishnet metamaterial has the advantage of lower losses and higher transmission and holds potential for further applications at higher frequencies. |
| Keywords: | Metamaterial Negative refractive index Double-negative Terahertz Isotropic-like fishnet structure |
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