Research Advance on the Sensing Characteristics of Refractive Index Sensors Based on Electromagnetic Metamaterials

Figure 9

(a) Transmission spectra of metamaterial sensors based on ultrathin substrates, reproduced with permission from reference [51] copyright 2010, AIP publishing. (b) Schematic diagrams and transmission spectra of metamaterial sensors based on lower-index substrates, reproduced with permission from reference [53] copyright 2011, John Wiley and Sons. (c) Schematic diagrams and transmission spectra of metamaterial sensors based on an ultrathin flexible polyimide substrate, reproduced with permission from reference [54] copyright 2017, AIP publishing.

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