Table 2.
Comparison results of the low RI sensing performances of the proposed gold wires-filled HC-NCF sensor with other works.
| Refs. | Structures | RI Range | |Sensitivity| | Resolution (RIU) |
FOM (RIU−1) |
|---|---|---|---|---|---|
| [12] | MXene-based SPR RI sensor | 1–1.36 | N/A (Avg), 198°/RIU (Max) |
N/A | N/A |
| [18] | Indium tin oxide-coated D-shape PCF sensor | 1.28–1.34 | N/A (Avg), 6000 nm/RIU (Max) |
1.6 × 10−7 | N/A |
| [19] | Gold-coated SPR PCF sensor | 1.23–1.29 | N/A (Avg), 5500 nm/RIU (Max) |
7.69 × 10−6 | N/A |
| [20] | Aluminum-doped zinc oxide-coated PCF sensor | 1.32–1.34 | N/A (Avg), 5000 nm/RIU (Max) |
2.0 × 10−5 | N/A |
| [21] | Gold and TiO2-coated PCF sensor | 1.22–1.34 | N/A (Avg), 7000 nm/RIU (Max) |
1.96 × 10−6 | N/A |
| This work | Gold wires-filled HC-NCF sensor | 1.20–1.34 | 4667 nm/RIU (Avg), 5700 nm/RIU (Max) 4833 nm/RIU (Avg), 6100 nm/RIU (Max) |
2.63 × 10−5 2.56 × 10−5 |
317 |