List of refractive indices List Some representative refractive indices

| Material | λ_nm | n_ |
|---|---|---|
| Sugar Solution, 75% |  | 1.4774 |
| Cubic zirconia |  | 2.15 - 2.18 |
| Potassium Niobate (KNbO3) |  | 2.28 |
| Silicon carbide |  | 2.65 - 2.69 |
| Cinnabar (Mercury sulfide) |  | 3.02 |
| Gallium(III) phosphide |  | 3.5 |
| Gallium(III) arsenide |  | 3.927 |
| Zinc Oxide | 390 | 2.4 |
| Germanium |  | 4.01 |
| Silicon | 590 | 3.962 |