Table 1.
The refractive index of the PHMB layer versus gas concentration [48].
| Refractive Index (n) | CO2 Gas Concentration (ppm) | ∆λres (pm) |
|---|---|---|
| 1.54 | 215 | 0.96 |
| 1.53 | 262 | 1.15 |
| 1.52 | 328 | 1.34 |
| 1.51 | 366 | 1.53 |
| 1.50 | 366 | 1.53 |
| 1.49 | 434 | 1.72 |
| 1.48 | 524 | 1.91 |
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