Table 4 The performance of the reported metamaterial refractive index sensor relative to those reported in the literature.
From: Design, fabrication and characterization of metamaterial absorber for sensing applications
References | Dimensions of unit cell (mm) | Frequency Range (GHz) | Absorptivity (%) | Resonance Frequency (GHz) | ΔF (MHz) | Normalized Sensitivity S (%) \({\text{RIU}}^{-1}\) | Q-Factor | FoM | Application |
|---|---|---|---|---|---|---|---|---|---|
Jul. 2022 | 22.86 × 10.16 | 8–12 | 96.83 | 9.06 | 110 | 3.088 | 435 | 13.432 | Detection of materials and their thickness |
88.38 | 11.16 | 150 | 2.803 | 325 | 9.109 | ||||
Dec. 2022 | 22.86 × 10.16 | 8–12 | 99.5 | 9.46 | 70 | 1.409 | 135 | 1.902 | Liquid sensing |
Feb. 2023 | 8 × 8 | 4–20 | – | 6.24 | – | – | 62.4 | – | – |
– | 10.608 | 17.68 | |||||||
Mar. 2023 | 22.86 × 10.16 | 8–12 | 99.99 | 10.21 | 410 | 5.45 | 430 | 23.435 | Fuel and oil adulteration sensing |
Dec. 2023 | 20 × 20 | 2–4 | 99.9 | 2.88 | 62.821 | 2.032 | 1413.29 | 28.718 | Material characterization and sensing |
98.9 | 3.57 | 22.384 | 0.584 | 1140.16 | 6.658 | ||||
Dec. 2023 | 15 × 15 | 2–14 | 99.92 | 5.46 | 920 | 15.56 | 665.85 | 103.606 | – |
99.98 | 11.3 | 1660 | 13.1 | 1883.3 | 246.712 | ||||
2024 | 10 × 10 | 18–34 | 99.9 | 20.193 | – | – | 155.33 | – | – |
99.9 | 30.087 | 527.84 | |||||||
This work | 15 × 15 | 20–30 | 28.146 | 4650 | 51.623 | 817 | 427 | Detection of Cancer Cells |
