4.5 Article

Equivalent-Circuit Interpretation of the Polarization Insensitive Performance of THz Metamaterial Absorbers

Journal

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2013.2285311

Keywords

Frequency selective surface; metamaterials; perfect absorber; polarization independent; reflection; resonance; terahertz (THz)

Funding

  1. National Science Foundation under NSF BRIGE [0824452]
  2. NSF CAREER
  3. NSF Graduate Research in Diversity program
  4. Directorate For Engineering
  5. Div Of Electrical, Commun & Cyber Sys [0824452, 0955160] Funding Source: National Science Foundation

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Polarization insensitive metamaterial perfect absorbers were investigated through finite element numerical method and a new equivalent-circuit electric model was proposed to interpret this polarization insensitivity. The devices were fabricated to validate the model and experimental measurements were shown to be in good agreement with the simulated results. This absorber device is suitable for future use in THz sensing and detection applications.

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