High-Energy Laser Wedged Windows
High-Energy Laser Wedged Windows
Our high-energy laser windows are specially designed to eliminate losses in vacuum cell applications and can be used as vacuum windows, convection barriers, or interferometer compensator plates.
- Damage resistant up to 10 J/cm2
- UV fused silica for excellent thermal stability
- Low wavefront distortion
- Hard refractory coatings
- 25.4 and 50.8 mm diameters See All Features
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | 10Q20XAR.14 | In Stock | ||||
| 10Q20XAR.16 | In Stock | ||||
| 10Q20XAR.18 | In Stock | ||||
 | 20Q20XAR.14 | In Stock | ||||
| 20Q20XAR.16 | In Stock | ||||
| 20Q20XAR.18 | In Stock |
Specifications
- MaterialUV Grade Fused Silica
- Damage Threshold10 J/cm2 @ 20 ns pulses, 20 Hz at 1064 nm, typical
- Diameter Tolerance+0/-0.13 mm
- Thickness Tolerance±38 mm
- Surface Flatnessλ/10 @632.8 nm over the clear aperture
- Surface Quality15-5 scratch-dig
- Clear ApertureCentral 80% of diameter
- Chamfers10Q20: 0.25-0.76 mm face width
20Q20: 0.38-1.14 mm face width - Chamfers Angle/Tolerance45° ±15°
- Wedge30 ±15 arc min
- Cleaning
Features
UV Fused Silica for UV, Laserline & Broadband Applications
UV Grade Fused Silica is synthetic amorphous silicon dioxide of extremely high purity providing maximum transmission from 195 to 2100 nm. This non-crystalline, colorless silica glass combines a very low thermal expansion coefficient with good optical qualities, and excellent transmittance in the ultraviolet region. Transmission and homogeneity exceed those of crystalline quartz without the problems of orientation and temperature instability inherent in the crystalline form. It will not fluoresce under UV light and is resistant to radiation. For high-energy applications, the extreme purity of fused silica eliminates microscopic defect sites that could lead to laser damage.
Hard Refractory Coatings for High Energy Lasers
These optics are precision polished, select grade fused silica coated with hard refractory multilayers for very high damage threshold. Three coatings are available covering the visible, NIR and IR regions with average reflectivity <0.5% per surface at 0º .
Fringe Patterns and Cavity Feedback Eliminated
A 30 arc min wedge between the polished faces eliminates fringe patterns and cavity feedback.
| Dimension (mm) | |||
|---|---|---|---|
| Model | øA | øB | C |
| 10Q20 | 25.4 | 20.3 | 6.10 |
| 20Q20 | 50.8 | 40.6 | 9.40 |
