| Usage: | Optical, Photography |
|---|---|
| Type: | Ge Windows |
| Transmittance: | 90%-95% |
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Due to its broad transmission range and opacity in the visible portion of the spectrum, germanium is well suited for IR laser applications. Germanium also acts as a longpass filter for wavelengths greater than 2 µm. In addition, germanium is inert to air, water, alkalis, and many acids. Germanium's transmission properties are highly temperature sensitive; in fact, the absorption becomes so large that germanium is nearly opaque at 100 °C and completely non-transmissive at 200 °C.
When handling optics, always wear gloves. This is especially true when working with germanium, as dust from the material is hazardous. For your safety, please follow all proper precautions, including wearing gloves when handling these windows and thoroughly washing your hands afterward.
We also offers precision windows fabricated from several other substrates for use in a large variety of laser and industrial applications. We also offer laser windows, which have AR coatings centered around commonly used laser wavelengths, and Brewster windows, which are designed to eliminate P-polarized reflected light.
| Diameter | 1" (25.4 mm) |
| Diameter Tolerance | +0.0 / -0.2 mm |
| Thickness | 5.0 mm |
| Thickness Tolerance | ±0.1 mm |
| Clear Aperture | ≥Ø22.86 mm |
| Parallelism | ≤1 arcmin |
| Surface Flatness | ≤λ over Clear Aperture |
| Surface Quality | 40-20 Scratch-Dig |
| AR Coating Range | 7 - 12 µm (-G Coating) |
| Reflectance over AR Coating Range | Ravg < 1% |
| Damage Threshold | 0.5 J/cm2 (10.6 µm, 100 ns, 1 Hz, Ø0.478 mm) |
| Reflectance Data | Please see the picture A below |
| Transmission Data | Please see the picture B below |
Overseas Exhibition
FAQ:
Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, TNT, UPS, EMS etc.
(2) If you have your own express account, it's great.If not,we could help you ship them.
Q: How to pay?
A: T/T, Paypal, etc
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 5pcs.
(2) For customized products, the MOQ is 10pcs-25pcs.
Q: What's the delivery time?
A: (1) For the standard products
For inventory: the delivery is 5 workdays after you place the order.
For customized products: the delivery is 2 or 3 weeks after you place the order.
(2) For the special-shaped products, the delivery is 4 or 6 workweeks after you place the order.
Q: Do you have standard products?
A: Our standard products in stock.
Q: Can I customize the products based on my need?
A: Yes, we can customize the material, specifications and optical coating for your optical components based on your needs.
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