Sapphire Window
Description
Uncoated sapphire provides exceptional surface hardness and a transmission range extending from the UV to the MIR. It can only be scratched by a few materials other than itself. The uncoated substrate is chemically inert and insoluble to water, common acids, or alkalis at temperatures up to ~1,000 °C.
Sapphire windows are z-cut so that the c-axis of the crystal is parallel with the optical axis, removing birefringence effects on transmitted light.
Sapphire Window
Specifications |
|
|---|---|
| Substrate Material: | Sapphire |
| Antireflection Coating: | Uncoated |
| Diameter: | 20 mm |
| Surface Quality: | 40-20 scratch-dig |
| Surface Flatness: | lambda/4 |
| Thickness: | 2 mm |
| Parallelism: | 3 arc min |
Features
Applications
Laser optics
Spectroscopy
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How to order?
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Ships from:
China
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Sold by:
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On FindLight:
since 2015
Frequently Asked Questions
Sapphire windows are z-cut so that the c-axis of the crystal is parallel with the optical axis, removing birefringence effects on transmitted light.
The uncoated substrate is chemically inert and insoluble to water, common acids, or alkalis at temperatures up to ~1,000 °C.
Uncoated sapphire provides exceptional surface hardness and a transmission range extending from the UV to the MIR.
Uncoated sapphire can only be scratched by a few materials other than itself.
Sapphire windows are commonly used in laser optics and spectroscopy.