Optical constants (n, k) of ISK157, covering 0.20 – 2.00 μm wavelength range.
| Wavelength (μm) | n | k |
|---|---|---|
| 0.2000 | 2.55060 | 0.00005 |
| 0.2470 | 1.58770 | 0.00009 |
| 0.2910 | 1.55616 | 0.00003 |
| 0.3350 | 1.54327 | 0.00000 |
| 0.3790 | 1.53203 | 0.00000 |
| 0.4230 | 1.52867 | 0.00000 |
| 0.4670 | 1.52430 | 0.00000 |
| 0.5110 | 1.52085 | 0.00000 |
| 0.5550 | 1.51877 | 0.00000 |
| 0.5990 | 1.51723 | 0.00000 |
| 0.6430 | 1.51630 | 0.00001 |
| 0.6870 | 1.51329 | 0.00001 |
| 0.7310 | 1.51298 | 0.00002 |
| 0.7750 | 1.51468 | 0.00004 |
| 0.8190 | 1.51197 | 0.00006 |
| 0.8630 | 1.51213 | 0.00009 |
| 0.9070 | 1.51252 | 0.00012 |
| 0.9510 | 1.51151 | 0.00015 |
| 0.9950 | 1.51035 | 0.00019 |
| 1.0390 | 1.50942 | 0.00023 |
| 1.0830 | 1.50934 | 0.00026 |
| 1.1270 | 1.50732 | 0.00030 |
| 1.1710 | 1.50771 | 0.00031 |
| 1.2150 | 1.50880 | 0.00032 |
| 1.2590 | 1.50678 | 0.00033 |
| 1.3030 | 1.50530 | 0.00033 |
| 1.3470 | 1.50507 | 0.00033 |
| 1.3910 | 1.50429 | 0.00033 |
| 1.4350 | 1.50367 | 0.00032 |
| 1.4790 | 1.50219 | 0.00031 |
| 1.5230 | 1.50164 | 0.00030 |
| 1.5670 | 1.50258 | 0.00029 |
| 1.6110 | 1.50062 | 0.00028 |
| 1.6550 | 1.50148 | 0.00028 |
| 1.6990 | 1.49930 | 0.00027 |
| 1.7430 | 1.50047 | 0.00027 |
| 1.7870 | 1.49828 | 0.00027 |
| 1.8310 | 1.49711 | 0.00028 |
| 1.8750 | 1.49805 | 0.00029 |
| 1.9190 | 1.49617 | 0.00030 |
| 1.9630 | 1.49397 | 0.00031 |
| 2.0000 | 1.49468 | 0.00033 |
Sampled data (1798 points total). Click "Download Full CSV" for complete data.
Acuitik film thickness measurement systems offer sub-nanometer non-contact precision.