TECHSPEC® 1λ Fused Silica Windows

These optical windows are precision manufactured using UV-grade synthetic fused silica. In addition to superior transmission characteristics, synthetic fused silica exhibits higher thermal properties, exceptional purity, and excellent environmental durability for demanding applications.

Optical windows are designed for use in optical systems to separate two environments while passing a particular spectral range between them. Applications include laser set-ups (i.e., at Brewster’s angle), emitter/detector protection devices (such as in spectrophotometers), and imaging systems involving ultraviolet wavelengths.

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Description Stock No. Price In Stock  
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5mm Dia. 1Wave Fused Silica Window, Uncoated
NT45-463 $52.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 5.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 1.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating Uncoated
RoHS Compliant
5mm Dia. 1Wave Fused Silica Window, UV AR Coated
NT45-807 $62.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 5.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 1.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating BBAR-UV Coated
RoHS Compliant
5mm Dia. 1Wave Fused Silica Window, VIS-NIR Coated
NT49-637 $62.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 5.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 1.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating VIS-NIR
RoHS Exempt
10mm Dia. 1Wave Fused Silica Window, Uncoated
NT45-308 $45.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 10.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 1.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating Uncoated
RoHS Compliant
10mm Dia. 1Wave Fused Silica Window, UV AR Coated
NT45-808 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 10.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 1.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating BBAR-UV Coated
RoHS Exempt
10mm Dia. 1Wave Fused Silica Window, VIS-NIR Coated
NT49-638 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 10.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 1.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating VIS-NIR
RoHS Exempt
12.5mm Dia. 1Wave Fused Silica Window, Uncoated
NT45-309 $45.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 12.5
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating Uncoated
RoHS Compliant
12.5mm Dia. 1Wave Fused Silica Window, UV AR Coated
NT45-809 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 12.5
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating BBAR-UV Coated
RoHS Compliant
12.5mm Dia. 1Wave Fused Silica Window, VIS-NIR Coated
NT49-639 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 12.5
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating VIS-NIR
RoHS Exempt
12.5mm x 12.5mm 1Wave Fused Silica Window, Uncoated
NT48-200 $45.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating Uncoated
RoHS Compliant
12.5mm x 12.5mm 1Wave Fused Silica Window, UV AR Coated
NT48-202 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating BBAR-UV Coated
RoHS Exempt
12.5mm x 12.5mm 1Wave Fused Silica Window, VIS-NIR Coated
NT49-640 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating VIS-NIR
RoHS Compliant
15mm Dia. 1Wave Fused Silica Window, Uncoated
NT45-310 $55.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 15.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating Uncoated
RoHS Compliant
15mm Dia. 1Wave Fused Silica Window, UV AR Coated
NT45-810 $65.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 15.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating BBAR-UV Coated
RoHS Compliant
15mm Dia. 1Wave Fused Silica Window, VIS-NIR Coated
NT49-641 $65.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 15.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating VIS-NIR
RoHS Exempt
20mm Dia. 1Wave Fused Silica Window, Uncoated
NT45-464 $60.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 20.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating Uncoated
RoHS Exempt
20mm Dia. 1Wave Fused Silica Window, UV AR Coated
NT45-811 $70.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 20.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating BBAR-UV Coated
RoHS Compliant
20mm Dia. 1Wave Fused Silica Window, VIS-NIR Coated
NT49-642 $70.00Click for special volume pricing Click to receive an email with delivery information. Click to add this item to your cart.
Diameter (mm) 20.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating VIS-NIR
RoHS Exempt
25mm Dia. 1Wave Fused Silica Window, Uncoated
NT45-311 $65.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating Uncoated
RoHS Compliant
25mm Dia. 1Wave Fused Silica Window, UV AR Coated
NT45-812 $75.00Click for special volume pricing In stock and ready to ship. Click to add this item to your cart.
Diameter (mm) 25.0
Dimensional Tolerance (mm) +0.00/-0.20
Clear Aperture (%) 90
Thickness (mm) 2.0
Thickness Tolerance (mm) ±0.38
Surface Accuracy (λ) 1 @ 632.8nm
Surface Quality 60-40
Parallelism (arcminutes) 5
Edges Ground, Maximum 0.25mm Edge Chip
Substrate Fused Silica UV Grade
Coating BBAR-UV Coated
RoHS Compliant
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