Role of Resonance Modes on Terahertz Metamaterials based Thin Film Sensors.
Role of Resonance Modes on Terahertz Metamaterials based Thin Film Sensors.
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DOI:
10.1038/s41598-017-07720-9
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发表时间:
2017-08-04
影响因子:
4.6
通讯作者:
Roy Chowdhury D
中科院分区:
文献类型:
--
作者:
Islam M;Rao SJM;Kumar G;Pal BP;Roy Chowdhury D
We investigate thin film sensing capabilities of a terahertz (THz) metamaterial, which comprises of an array of single split gap ring resonators (SRRs). The top surface of the proposed metamaterial is covered with a thin layer of analyte in order to examine various sensing parameters. The sensitivity and corresponding figure of merit (FoM) of the odd and even resonant modes are analyzed with respect to different thicknesses of the coated analyte film. The sensing parameters of different resonance modes are elaborated and explained with appropriate physical explanations. We have also employed a semi-analytical transmission line model in order to validate our numerically simulated observations. Such study should be very useful for the development of metamaterials based sensing devices, bio-sensors etc in near future.
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