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Knight Optical's stock range of UV fused silica windows are made from Corning 7980 grade 2G or equivilent of Spectrosil B. UV grade fused silica windows have excellent UV transmission working efficiently at 175nm. Making them ideal for spectroscopic instruments in the UV.

These UV fused silica windows also have excellent chemical stability, can be used up to 1050°C and are virtually free from fluorescence. Our stock windows are flat and parallel with good quality surfaces making them ideal for demanding scientific instrument applications. Stock windows can be edged down or re-shaped for custom fused silica parts at short notice and we can offer them both uncoated or with AR coating for 248nm-400nm.

Material:
Diameter:
Length/Width:
Thickness:
Flatness:
≤ 50mm
> 50mm
Surface Quality:
Parallelism
UV fused silica (Spectrosil 2000 or equivalent)
+0/-0.20 mm
+0/-0.20 mm
±0.1 mm

<1/2 waves (over 90% CA)
<2 waves (over 90% CA)

<40-20 scratch/dig
<1 arc minute

Coating:
UV fused silica windows with suffix "AU1" are coated both faces with:
Multi-layer, anti-reflective coating < 0.5% @ 248 - 400nm

Typical processes that we can offer for quartz windows are as follows:

Stock sheets can be edged to custom diameters.
CNC shaping of quartz to unusual shapes and designs.
Stock quartz sheets can be cut to custom square and rectangular apertures.
Water jet cutting to special shapes and sizes.
Special AR coatings and hot mirror coatings onto quartz substrates.
Sandblasting of special patterns.
Screen printing.
Edge polishing.
Mounting options.
UV fused silica glass to metal seals for gas cells.

UV fused silica windows with suffix "AU1" are coated both faces with:
Multi-layer, anti-reflective coating < 0.5% @ 248 - 400nm

Items 11-17 of 17

Name Material Coating Coated Sides Diameter (mm) Length (mm) Width (mm) Thickness (mm) Price Buy
WHF4000-AU1 UVFS AR coated (248-400nm) Both sides 40 3
US$115.37
WHF5000 UVFS Uncoated 50 4
US$110.78
WHF5000-AU1 UVFS AR coated (248-400nm) Both sides 50 4
US$149.01
WHF6500-AU1 UVFS AR coated (248-400nm) Both sides 65 6
US$182.65
WHF7500 UVFS Uncoated 75 6
US$149.08
WHF5051 UVFS Uncoated 50 50 2
US$98.55
WHF5053 UVFS Uncoated 50 50 2.5
US$103.14
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UVFS (JGS1) Windows

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