Parallel Window, Nano-Textured UV Fused Silica, 25.4 mm, λ/10, 250-550 nm

The 10Q20RAR.S Laser Window is made of high purity UV Grade Fused Silica Corning 7980 grade 0A material. It is 25.4 mm diameter x 4.0 mm thick. The front and back surfaces have sub-wavelength nano-textures etched into the surface creating a high performance anti-reflection effect. The RAR.S pattern is optimized for 250-550 nm. The window exhibits λ/10 flatness and 10-5 scratch dig with high damage thresholds.

Specifications

Technical Specs

Diameter
25.4 mm
Material
High Purity Fused Silica
Antireflection Coating
250-550 nm
Reflectance
R<0.1% @ 250-360 nm, R<0.3% @ 400-550 nm
Surface Flatness
λ/10 @ 632.8 nm
Surface Quality
10-5 scratch-dig

Thickness Tolerance
±0.15 mm
Chamfers
0.4 mm
Chamfers Angle/Tolerance
45 ±15°
Clear Aperture
≥ central 90% of diameter
Diameter Tolerance
+0.0 / -0.25 mm
Wedge
<2 arc min

Diameter
25.4 mm
Material
High Purity Fused Silica
Antireflection Coating
250-550 nm
Reflectance
R<0.1% @ 250-360 nm, R<0.3% @ 400-550 nm
Surface Flatness
λ/10 @ 632.8 nm
Surface Quality
10-5 scratch-dig

Thickness Tolerance
±0.15 mm
Chamfers
0.4 mm
Chamfers Angle/Tolerance
45 ±15°
Clear Aperture
≥ central 90% of diameter
Diameter Tolerance
+0.0 / -0.25 mm
Wedge
<2 arc min

Resources & Downloads

3D Product Models

2D Product Drawings

Nano-Texture Optics(273.9 kB, PDF)
90086077B drawing.pdf(187.9 kB, PDF)

Other

10Q20RAR.S RoHS Certificate(268.3 kB, PDF)
10Q20RAR.S_ROHS2-2021.pdf(0, PDF)

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