Abstract
In this work, a new multiband terahertz metamaterial absorber is designed and characterised by numerical simulation method. In addition, the utilisation of the proposed absorber as a sensor is also investigated. The dielectric and thickness sensing characteristics are analysed. The proposed multiband metamaterial absorber has the ability for utilising the terahertz region up to 2 THz. According to the results, it is found that the proposed absorber is capable of sensing unknown materials and material thickness with any of its five absorption bands. The sensitivity of the proposed sensor is 6.57 GHz / unit sensitivity for dielectric sensing and \(7.66\hbox { GHz}/{\mu }\hbox {m}\) for thickness sensing.
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Acknowledgements
The study reported here was carried out at Middle East Technical University-Northern Cyprus Campus (METU-NCC). It is supported by METU-NCC under the grant numbers of BAP-FEN-15-D-3 and BAP-FEN-16-K-8; and partially supported by TUBITAK (Scientific and Technical Research Council of Turkey) under the project number of 114F091.
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Sabah, C., Mulla, B., Altan, H. et al. Cross-like terahertz metamaterial absorber for sensing applications. Pramana - J Phys 91, 17 (2018). https://doi.org/10.1007/s12043-018-1591-4
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DOI: https://doi.org/10.1007/s12043-018-1591-4