Our partner
Infrared windows and substrates
from AndoverAndover stocks a variety of optical-quality infrared-transmitting substrates. All substrates are optically polished. AR coatings are also available.
For convenience, we offer the windows in two standard sizes: 25 mm and 50 mm dia. In addition, we can produce custom sizes and shapes. Contact our expert on the right for a quotation.
- High optical quality
- Available from stock
- Custom sizes available
Specifications
| General Specifications | |
|---|---|
| Thickness | 1.0±0.2mm |
| Diameter Tolerance | +0/-0.1 mm |
| Surface Quality | 60/40 per MIL-C-48497A |
| CTE | Coefficient of Thermal Expansion (see tables) |
| Optional | Threaded ring mounting available. Contact our expert on the right for thread sizes |
| Size, Shape & Part Number | ||
|---|---|---|
| Substrate Material | 25 mm Ø | 50 mm Ø |
| Silicon (Si) | IRWS100-25 | IRWS100-50 |
| Germanium (Ge) | IRWS200-25 | IRWS200-50 |
| Sapphire (AI2O3) | IRWS300-25 | IRWS300-50 |
| Water-Free Fused Silica (SiO2) | IRWS400-25 | IRWS400-50 |
| Calcuim Fluoride (CaF2) | IRWS500-25 | IRWS500-50 |
| Zinc Selenide (ZnSe) | IRWS600-25 | IRWS600-50 |
| Silicon | Germanium |
|---|---|
| Silicon (Si) is an economical choice for many IR applications. Refractive index: 3.43 at 3.0µm CTE (10-6/°C): 4.15 Hardness (Knoop): 820 | Germanium (Ge) is widely used for lenses and windows in the Mid-IR region. Refractive index: 4.00 at 10.6µm CTE (10-6/°C): 5.7 Hardness (Knoop): 692 |
 |  |
| Sapphire | Water-free fused Silica |
| Sapphire (Al2O3) is transparent over a wide range, and has excellent mechanical strength. Refractive index: 1.737 at 2.0µm CTE (10-6/°C): 7.7 Hardness (Knoop): 1920 | WF Fused silica (SiO2) has excellent transmission in VIS and near IR and exhibits minimal fluorescence. Refractive index: 1.45 at 1.0µm CTE (10-6/°C): 0.55 Hardness (Knoop): 741 |
 |  |
| Calcium Fluoride | Zinc Selenide |
| Calcium Fluoride (CaF2) has good transmission from the UV to the Mid-IR. Refractive index: 1.40 at 5.0µm CTE (10-6/°C): 18.9 Hardness (Knoop): 160 | Zinc Selenide (ZnSe) is widely used for lenses and windows in the Mid-IR region. Refractive index: 2.40 at 10.6µm CTE (10-6/°C): 7.6 Hardness (Knoop): 100 |
 |  |
Applications
Thermal Imaging
Detector Windows
IR Photography
Contact
Ing.
Fabrizio
Renzi
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Quantum Design s.r.l.
Via Francesco Sapori, 27
00143 Roma
Italy
| Phone: | +39 06 5004204 |
| Fax: | +39 06 5010389 |
| E-mail: | italy@qd-europe.com |
