Optical constants (n, k) of E-FD4(HOYA), covering 0.37 – 1.01 μm wavelength range.
| Wavelength (μm) | n | k |
|---|---|---|
| 0.3650 | 1.83539 | 0.00000 |
| 0.3780 | 1.82427 | 0.00000 |
| 0.3910 | 1.81490 | 0.00000 |
| 0.4039 | 1.80689 | 0.00000 |
| 0.4169 | 1.79998 | 0.00000 |
| 0.4299 | 1.79394 | 0.00000 |
| 0.4429 | 1.78863 | 0.00000 |
| 0.4559 | 1.78391 | 0.00000 |
| 0.4688 | 1.77969 | 0.00000 |
| 0.4818 | 1.77590 | 0.00000 |
| 0.4948 | 1.77247 | 0.00000 |
| 0.5078 | 1.76937 | 0.00000 |
| 0.5208 | 1.76653 | 0.00000 |
| 0.5337 | 1.76394 | 0.00000 |
| 0.5467 | 1.76156 | 0.00000 |
| 0.5597 | 1.75936 | 0.00000 |
| 0.5727 | 1.75734 | 0.00000 |
| 0.5857 | 1.75546 | 0.00000 |
| 0.5986 | 1.75372 | 0.00000 |
| 0.6116 | 1.75210 | 0.00000 |
| 0.6246 | 1.75059 | 0.00000 |
| 0.6376 | 1.74917 | 0.00000 |
| 0.6506 | 1.74785 | 0.00000 |
| 0.6635 | 1.74661 | 0.00000 |
| 0.6765 | 1.74544 | 0.00000 |
| 0.6895 | 1.74434 | 0.00000 |
| 0.7025 | 1.74330 | 0.00000 |
| 0.7155 | 1.74232 | 0.00000 |
| 0.7284 | 1.74139 | 0.00000 |
| 0.7414 | 1.74051 | 0.00000 |
| 0.7544 | 1.73967 | 0.00000 |
| 0.7674 | 1.73888 | 0.00000 |
| 0.7804 | 1.73812 | 0.00000 |
| 0.7933 | 1.73739 | 0.00000 |
| 0.8063 | 1.73670 | 0.00000 |
| 0.8193 | 1.73604 | 0.00000 |
| 0.8323 | 1.73541 | 0.00000 |
| 0.8452 | 1.73481 | 0.00000 |
| 0.8582 | 1.73422 | 0.00000 |
| 0.8712 | 1.73366 | 0.00000 |
| 0.8842 | 1.73312 | 0.00000 |
| 0.8972 | 1.73261 | 0.00000 |
| 0.9101 | 1.73210 | 0.00000 |
| 0.9231 | 1.73162 | 0.00000 |
| 0.9361 | 1.73115 | 0.00000 |
| 0.9491 | 1.73070 | 0.00000 |
| 0.9621 | 1.73026 | 0.00000 |
| 0.9750 | 1.72984 | 0.00000 |
| 0.9880 | 1.72942 | 0.00000 |
| 1.0010 | 1.72902 | 0.00000 |
| 1.0140 | 1.72863 | 0.00000 |
Sampled data (101 points total). Click "Download Full CSV" for complete data.
Acuitik film thickness measurement systems offer sub-nanometer non-contact precision.