4.4 Article

Electromagnetically induced transparency analog in terahertz hybrid metal-dielectric metamaterials

Journal

AIP ADVANCES
Volume 11, Issue 6, Pages -

Publisher

AIP Publishing
DOI: 10.1063/5.0053709

Keywords

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Funding

  1. National Natural Science Foundation of China [61805127, 41904017]
  2. Natural Science Foundation of Shandong Province [ZR2019BF014]
  3. Key Technology Research and Development Program of Shandong [2019JZZY020109]

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A novel electromagnetic induced transparency (EIT) analog is proposed and demonstrated numerically in the terahertz region using hybrid metal-dielectric metamaterials. The EIT analog, consisting of a metal bar and a silicon disk, achieves high transmission with a Q-factor of approximately 250 through destructive interference between localized surface plasmon resonance and anapole modes. The hybrid metamaterial's performance is influenced by background index and silicon disk radius, and it also shows potential for integration into microfluidic chips for various sensing applications.
An electromagnetically induced transparency (EIT) analog in hybrid metal-dielectric metamaterials is proposed and numerically demonstrated in the terahertz region. The EIT analog consists of a metal bar and a silicon disk (SD) to support localized surface plasmon resonance and anapole modes. A high transmission EIT-like optical response was achieved with a Q-factor of similar to 250 as interpreted by the destructive interference between these two modes through the hybrid metamaterial. The influences of the background index and SD radius on the hybrid metamaterial are also demonstrated. In addition, the proposed metamaterial has the potential to be integrated into microfluidic chips for tumor, pesticide, and poison sensing, which gives a new way to realize EIT in a way that is different using all-metal and all-dielectric materials.

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