|
| 4πβ/λ (cm−1) | 2πδr/λ (×100 cm−1) |
| Aluminium | 5.130 | 11.4 |
| Ethanol | 0.305 | 4.00 |
| Oil | 0.262 | 4.36 |
| PMMA | 0.425 | 5.63 |
| Water | 0.482 | 4.87 |
| Polymer | 0.306 | 5.00 |