| Material | Refractive Index | Transmission Range(μm) | Thermal Expansion Coefficient(10-6/K) | Density(g/cm3) |
| BK7/ | 1.5164@588nm | 330-2100nm | 7.50 | 2.52 |
| K9 | ||||
| Fused Silica | 1.4858@308nm | 185-2500nm | 0.58 | 2.20 |
| Sapphire | 1.755@1000nm | 180-4500nm | 8.40 | 3.98 |
| Calcium Fluoride | 1.399@ 5000nm | 170-7800nm | 18.85 | 3.18 |
| Magnesium Fluoride | no=1.3836(405nm) ne=1.3957(405nm) | 120-7000nm | 13.7||a; 8.48||c | 3.17 |
| Silicon | 3.426@5000nm | 1200-7000nm | 2.55 | 2.33 |
| Germanium | 4.003@10000nm | 2000-14000nm | 5.50 | 5.33 |
| ZnSe | 2.4028(10600nm) | 550-19000nm | 7.60 | 5.27 |
