Broad transparent spectral range 0.2μm to 3.5μm
Good chemical, mechanical and thermal properties
Good refractive index properties
Applications: waveplates and olarizing optics
Maximum size: 130x130mm in square and diameter 150mm
Optical grade quartz crystals has a broad transparent range of 0.2μm to 3.5μm, with high internal crystalline perfection and optical homogeneity. Quartz crystals has excellent mechanical and physical properties, easy to be fabricated, it also has low thermal expansion, high chemical resistance and non deliquesce. And moreover, it exhibits a refractive index difference around 0.009, which makes it widely used in the wave plates and polarization applications.
Basic Properties
| Transparency Range | 200 - 2300 nm |
| Crystal Symmetry | Hexagonal, P3121 |
| Lattice Constants | a=b=4.9133A, c=5.4053A |
| Density | 2.65 g/cm3 |
| Thermo-Optic Coefficients | dno/dT= -0.52 x 10-6 /oC@530 nm |
| dne/dT= -0.63 x 10-6/oC@530 nm | |
| Damage Threshold ( 10ns, 10Hz) | ＞ 1GW/cm2 at 1064nm |
| ＞500 MW/cm2 at 532nm | |
| Optical Homogeneity | Δn < 10-6/cm |
| Mohs Hardness | 7 |
| Thermal Expansion Coefficient | αa = 14 x 10-6/K |
| ac = 7.6 x 10-6/K | |
| Linear Absorption Coefficient | α<0.01cm-1 from 300 to 2300 nm |
Sellmeier Equations (λ in µm) | no2=2.3573-0.01170λ2+0.01054/λ2+1.3414x10-4/λ4-4.4537x10-7/λ6+5.9236x10-8/λ8 |
| ne2=2.3849-0.01259λ2+0.01079/λ2+1.6518x10-4/λ4-1.9474x10-6/λ6+9.3648x10-8/λ8 |
| Size | Up to Φ150mm |
| Surface Quality | 10/5 to MIL-PRF-13830B |
| Flatness | λ/8@633 nm |
| Optical Axis Orientation | 6 arc min |
| Parallelism | 20 arc sec |
| Clear Aperture | ＞90% |
| Coating | AR-coating or P-coating |
| Mount | Upon Customer's Specification |
