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Mirror Blanks


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Features

  • Four Sizes Available: Ø1/2", Ø19 mm, Ø1", and Ø2"
  • Front Surface Flatness of λ/10, with λ/20 Available as a Custom Order via Tech Support
  • Back Surface is Fine Ground
  • Volume Discounts Available

Thorlabs' mirror blanks are designed to be used as front-surface mirrors when coated. Fabricated from substrate-grade fused silica, which exhibits high transmission in the 185 nm to 2.1 μm range (refer to the transmission graph to the right), these mirror blanks offer a high degree of purity and exceptional environmental durability.

Our Ø19 mm mirror blank is specifically designed to fit our Polaris Fixed Optic Mounts for laser system design and other OEM applications. This diameter provides a larger clear aperture than Ø1/2" optics while allowing the mounts to maintain a Ø1" footprint.

Item #DiameterThicknessParallelismSurface QualitySurface FlatnessClear ApertureMaterial
PF05-0312.7 mm
+0.0/-0.1 mm
6.0 mm
± 0.2 mm
<5 arcmin40-20
Scratch-Dig
λ/10>90% of DiameterFused Silica
PF07-0319.0 mm
+0.0/-0.1 mm
6.0 mm
± 0.2 mm
PF10-0325.4 mm
+0.0/-0.1 mm
6.0 mm
± 0.2 mm
PF20-0350.8 mm
+0.0/-0.1 mm
12.7 mm
± 0.2 mm
Click the Support Documentation icon document icon or Part Number below to view the available support documentation
Part Number Product Description
PF05-03 Support Documentation PF05-03 : Fused Silica Mirror Blank, Ø12.7 mm (1/2"), Thickness: 6.0 mm ± 0.2 mm
PF07-03 Support Documentation PF07-03 : Ø19 mm Fused Silica Mirror Blank, Thickness: 6.0 mm ± 0.2 mm
PF10-03 Support Documentation PF10-03 : Fused Silica Mirror Blank, Ø25.4 mm (1"), Thickness: 6.0 mm ± 0.2 mm
PF20-03 Support Documentation PF20-03 : Fused Silica Mirror Blank, Ø50.8 mm (2"). Thickness: 12.7 mm ± 0.2 mm

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Posted Comments:
Poster: ccrocker
Posted Date: 2014-06-12 14:11:01.143
Is it possible to order get these backside polished?
Poster: jlow
Posted Date: 2014-06-12 02:28:00.0
Response from Jeremy at Thorlabs: Yes we can quote these with the backside polished. I will contact you directly to get more information on the polish quality needed and provide a quote.
Poster: tor
Posted Date: 2010-11-23 16:12:36.0
Response from Tor at Thorlabs to Andres: While beamsplitters are designed to pass and reflect a specific fraction of light, a reflective ND filter may be more suitable for detector applications. I have contacted you for more information regarding your transmission requirements.
Poster: andres.aragoneses
Posted Date: 2010-11-23 15:32:40.0
Dear sir/madam I would like to know if you provide half transparent mirrors, or if that is just beam-splitters. I would like to put a mirror in front of a 650nm laser and measure its intensity putting the detector on the other side of the mirror, so the mirror shloud let a fraction of light pass through it. sincerely Andrés Aragoneses (andres.aragoneses@upc.edu)
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Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
PF05-03 Support Documentation
PF05-03 Fused Silica Mirror Blank, Ø12.7 mm (1/2"), Thickness: 6.0 mm ± 0.2 mm
$25.50
Today
PF07-03 Support Documentation
PF07-03 Ø19 mm Fused Silica Mirror Blank, Thickness: 6.0 mm ± 0.2 mm
$36.00
Today
PF10-03 Support Documentation
PF10-03 Fused Silica Mirror Blank, Ø25.4 mm (1"), Thickness: 6.0 mm ± 0.2 mm
$45.90
Today
PF20-03 Support Documentation
PF20-03 Fused Silica Mirror Blank, Ø50.8 mm (2"). Thickness: 12.7 mm ± 0.2 mm
$76.50
Today
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