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 |
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Features
Applications
Laser optics
Spectroscopy
Frequently Asked Questions
What is the orientation of sapphire windows?
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.
What is the temperature range that uncoated sapphire can withstand?
The uncoated substrate is chemically inert and insoluble to water, common acids, or alkalis at temperatures up to ~1,000 °C.
What is the transmission range of uncoated sapphire?
Uncoated sapphire provides exceptional surface hardness and a transmission range extending from the UV to the MIR.
What are the materials that can scratch uncoated sapphire?
Uncoated sapphire can only be scratched by a few materials other than itself.
What are the applications of sapphire windows?
Sapphire windows are commonly used in laser optics and spectroscopy.
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