Design of a negative refractive index material based on numerical simulation

Rizwan, Muhammad; Mahmood, Tariq; Rafique, Hummera; Tanveer, Muhammad; Haider, Syed Fawad

doi:10.1016/j.cjph.2016.05.009

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…[3,4]. In recent years, with the development of experimental technology and theory, many different types of LHMs structures, including open rings [5][6][7][8], fishnet type [9], composed silver slabs with parallel nanorods [10], S type [11], spiral type [12], H type [13], and L type [14], have been designed. However, most of these designs only performed a single negative refraction frequency band, in which the permittivity and permeability are both negative, and one primary resonance is offered.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Fishnet Structures for Dual Band THz Left-Handed Metamaterials

Zhang

Wei

et al. 2021

Photonics

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Plasmonic fishnet structures are proposed to realize dual-band terahertz (THz) left-handed metamaterials (LHMs). The calculated permittivity ε and permeability μ of single-layer LHMs show that ε < 0 and μ < 0 can be simultaneously satisfied in two frequency bands, resulting in dual-band LHMs. The electric and magnetic field distributions are consistent with the current distributions and confirm the physical mechanism of negative permeability. Furthermore, the existence of negative refraction is validated by a stacked LHMs prism with an angle of 1.79°. It is shown that at 2.04–2.42 THz and 3.12–3.28 THz bands, negative refractive indices of the prism can be obtained, facilitating the practical application of LHMs in THz image, sensor, detection, communication, and so on.

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