| Transmission Wavelength Range | 1000nm---14000nm |
| Density (g Cm-3) | 5.32 @300K |
| Melting Point (℃) | 1238 |
| Dielectric Constant Static / High Frame | 12.85/10.88 @ 300K |
| Coefficient Of Thermal Expansion (1/℃) | 5.7*10-6 @300K |
| Bulk Elastic Modulus (gpa) | 101.32 |
| Shear Modulus (gpa) | 55.66 @298K |
| Thermal Conductivity (j/k .m. S) | 55 @ 300K |
| Heat Capacity (j/g .k) | 0.32 |
| Knoop Hardness (kg/mm2) | 731 |
| Apparent Elastic Limit (mpa) | 49.46 |
| Young's Modulus (gpa) | 138.5 @298K |
| Poisson's Ratio | 0.31 @293K |
| Debye Temperature (k) | 360 |
| Band Gap (ev) | 1.4 |
| Absorption Coefficient | 0.01 @ 2500nm—11000nm |
| Thermooptic Coefficient , Dn/dt (1/k) | 160-120*10-6 @3000nm—12000nm |
| Technical Requirement | Commercial Grade | Precision Grade | High Precision Level |
| Size Range | 1-600mm | 2-600mm | 2-600mm |
| Diameter Tolerance | 土0.1mm | 土0.025mm | 土0.01mm |
| Thickness Tolerance | 土0.1mm | 土0.025mm | 土0.01mm |
| Parallel Deviation | ±3´ | ±1´ | ±30´´ |
| Surface Quality | 60-40 | 40-20 | 20-10 |
| Surface Accuracy | 1.0λ | λ/10 | λ/20 |
| Coating | 3-5μm OR 8-12μm AR, <5% per Surface | ||
| Inverted Edge | 0.1-0.5mm*45° | ||
| Material | Gallium arsenide or other crystalline materials | ||
| Type Number | Coke Distance (mm) | Wavelength (um) | Edge Thickness (mm) |
| Diameter 12 | 25.4/38.1/41 | 8-12um | 2 |
| Diameter 18 | /50.8/63.5/ | 8-12um | 2 |
| Diameter 19.05 | /100/101.6 | 8-12um | 2 |
| Diameter 20 | 8-12um | ||
| Diameter 25 | 8-12um | 3 | |
| Diameter 25.4 | 8-12um | 3 | |
| Diameter 30 | 8-12um | 6 | |
| Diameter 38.1 | 8-12um | 7.8 |
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