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

Figure 10

(a) Schematic of substrate etching for plasmonic elements formed on a substrate. (b) The wavelength shift as a function of the refractive index of the coating layer for the asymmetric double bar (ADB)-etch and ADB-non. (a, b) Reproduced with permission from reference [57] copyright 2018, Optical Society of America.

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