Features
- Protected Aluminum: Ravg > 90% from 450 nm - 2 µm, Ravg > 95% from 2 - 20 µm
- Surface Flatness: λ/10)
- Scratch-Dig: 40-20
This Thorlabs’ Protected Aluminum coated mirror is a good option for many general broadband applications. An SiO coating is used to protect the delicate aluminum coating, making it suitable for laboratory and industrial use. The protected aluminum coating gives a reflectivity that most closely matches the reflection of a bare aluminum coating. These mirrors have an average reflectivities greater than 90% from 450 nm - 2 µm and greater than 95% over their 2 - 20 µm spectral range.
Specifications
- Dimensions: 1/2" x 1/2" (12.7 x 12.7 mm)
- Thickness: 0.24" (6.0 mm)
- Reflectivity: Ravg >90% from 450 nm - 2 µm, Ravg >95% from 2 - 20 µm
- Substrate: N-BK7
- Flatness: λ/10 @ 633 nm
- Parallelism: <3 arcmin
- Clear Aperture: >90% of Reflective Area
- Damage Threshold: 0.3 J/cm2 at 1064 nm, 10 ns, 10 Hz, Ø1.000 mm
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