| Wavelength [µm] | Refractive index |
|---|---|
| 1.357 | 3.497 |
| 1.970 | 3.454 |
| 2.437 | 3.441 |
| 3.000 | 3.432 |
| 3.500 | 3.428 |
| 4.000 | 3.425 |
| 4.500 | 3.424 |
| 5.000 | 3.422 |
| 6.000 | 3.420 |
| 7.000 | 3.419 |
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