Role of Resonance Modes on Terahertz Metamaterials based Thin Film Sensors.

Sci Rep

Mahindra Ecole Centrale, Jeedimetla, Hyderabad, 500043, Telengana, India.

Published: August 2017

AI Article Synopsis

  • The study explores the sensing abilities of a terahertz metamaterial made of split gap ring resonators, focusing on how a thin analyte layer affects its performance.
  • Different thicknesses of the analyte film are analyzed to determine the sensitivity and figure of merit (FoM) for various resonance modes.
  • The researchers also use a semi-analytical transmission line model to confirm their numerical simulations, highlighting its potential applications in future sensing devices and biosensors.

Article Abstract

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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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5544699PMC
http://dx.doi.org/10.1038/s41598-017-07720-9DOI Listing

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