Qinhuangdao Inrinsic Crystal Technology Co., Ltd Optics & Coatings windows are made from select grades of the finest available optical materials. VUV/UV windows are suitable for a large range of VUV-UV applications. Flat laser windows are suitable for high-power laser applications and as substrates for mirrors and beamsplitters.
MgF2 (Magnesium Fluoride) is positive uniaxial crystal with a very high optical transmittance from the vacuum UV to IR. It also has a large resistance to mechanical and thermal shock, to optical radiation, and is chemically stable, making it a very useful materials for UV and IR optics.
we also can offers a-cut (or [100] cut) MgF2 crystals for the maximum birefringence. c-cut (or cut along the optical axis) with minimum birefringence, or random-cut (cut along a random axis) MgF2 windows are also available.
Note: Excimer-grade CaF2 and MgF2 substrates are available for laser cavity optics and are available with transmittance traces for an additional charge.
| Part Number | Diameter | Thickness | Substrate Material |
|---|---|---|---|
| W1D-FLC | 1.0" (25.4mm) | 0.250" (6.35mm) | Excimer-grade CaF2 |
| W1.5D-FLC | 1.5" (38.1mm) | 0.200" (5mm) | Excimer-grade CaF2 |
| W2D-FLC | 2.0" (50.8mm) | 0.375" (9.53mm) | Excimer-grade CaF2 |
| W1D-FLM | 1.0" (25.4mm) | 0.250" (6.35mm) | Excimer-grade MgF2 |
| W1.5D-FLM | 1.5" (38.1mm) | 0.200" (5mm) | Excimer-grade MgF2 |
| W2D-FLM | 2.0" (50.8mm) | 0.375" (9.53mm) | Excimer-grade MgF2 |
Specifications
| Material | Excimer-grade CaF2, MgF2 |
| Diameter Tolerance | +0.00/-0.005" |
| Thickness Tolerance | +/-0.25mm |
| Surface Figure | Both sides 1/10 Wave @ 632.8nm |
| Parallelism | 3 arc min |
| Scratch/Dig | 20-10 |
| Chamfer | 0.5mm x 45° |
| Clear Aperture | Central 85% |
