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

Figure 3

(a) Schematic diagrams and reflection spectra of metamaterial sensors based on double-opening asymmetrical SRRs arrays, reproduced with permission from reference [24] copyright 2007, AIP publishing. (b) Schematic diagrams and transmission spectra of metamaterial sensors based on double-opening asymmetrical SRRs arrays, reproduced with permission from reference [25] copyright 2014, AIP publishing.

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