Sorry, this product is no longer offered for sale. The recommended replacement product is 30Z20AL.2.
UV Aluminum Mirror, Zerodur, 76.2 mm, λ/20, 250-600 nm
The 30Z40AL.2 Broadband UV Enhanced Aluminum Mirror is an excellent general purpose, broadband reflector. This 76.2 mm (3.0 inch) diameter mirror is made from a 14.7 mm thick Zerodur substrate. Zerodur, a glass-ceramic material, exhibits nominally zero thermal expansion which provides extra stability for applications requiring diffraction limited performance. The AL.2 UV enhanced aluminum coating is a durable, broadband UV reflector with an average reflectivity greater than 90% from 250-600 nm. The AL.2 aluminum coating contains a durable dielectric overcoat to prevent oxidation of the metal. This mirror has a λ/20 surface flatness and a 10-2 surface quality.
Specifications
- Wavelength RegionUV
- Wavelength Range250-600 nm
- Mirror ShapeRound
- Diameter76.2 mm
- Mirror SizeØ76.2 mm
- Thickness14.7 mm
- MaterialZerodur® or equivalent
- Coating TypeUV Enhanced Aluminum
- Coating CodeAL.2
- Surface Quality10-2 scratch-dig
- Surface Flatnessλ/20 at 632.8 nm
- Angle of Incidence0-45°
- Clear Aperture≥central 80% of diameter
- Back SurfaceGround
- ReflectivityRavg>90% @ 250-600 nm
- Damage Threshold2 J/cm² with 10 ns pulses at 355 nm, 20Hz
- Diameter Tolerance+0/-0.13 mm
- Thickness Tolerance±0.25 mm
- Chamfers0.38–1.14 mm face width
- Chamfers Angle Tolerance45° ±15°
- Cleaning
Resources & Downloads
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