| Wavelength [µm] | Refractive index |
|---|---|
| 2.0581 | 4.102 |
| 2.3126 | 4.079 |
| 2.577 | 4.061 |
| 2.998 | 4.045 |
| 3.419 | 4.033 |
| 4.866 | 4.017 |
| 6.238 | 4.009 |
| 9.72 | 4.003 |
| 12.00 | 4.0023 |
| 13.02 | 4.0021 |
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