- Ø1/2" and Ø1" Versions Available
- Sapphire Substrate
- Wavelength Range: 150 nm - 5 μm
- Highly Durable and Scratch Resistant
- Ideal for Thermally Demanding Applications
These Sapphire High Precision Windows, which are available in Ø1/2" and Ø1" sizes, offer high transmission in the 150 nm - 5 μm range. Sapphire is the material of choice for very demanding applications that require reliability, strength, a broad transmission range, and/or low transmitted wavefront distortion at both high and low operating temperatures.
With exceptional surface hardness, sapphire can be scratched by only a few substances other than itself. It is chemically inert and insoluble to water, common acids, or alkalis for temperatures up to ~1,000 °C. Our sapphire windows are cut so that the c-axis of the crystal is parallel with the optical axis.
Thorlabs offers High Precision Windows fabricated from various substrate materials for use in a large variety of laser and industrial applications. We also offer laser windows, which have wavelength-specific AR coatings centered around commonly used laser wavelengths, and Brewster windows, which are known to eliminate p-polarization reflectance.
|Thickness||3 mm||5 mm|
|Thickness Tolerance||±0.3 mm|
|Diameter Tolerance||+0.0 / -0.2 mm|
|Surface Quality||60-40 Scratch-Dig|
|Surface Flatness (@633 nm)||λ over Clear Aperture|
|Clear Aperture||>90% Diameter|