Features
- No Chromatic Aberrations Unlike with Lens-Based Systems
- >96% Average Reflectivity: 800 nm - 20 µm
- Damage Threshold: 2.0 J/cm2 at 1064 nm, 10 ns, 10 Hz, Ø1.000 mm
With >96% average reflectivity all the way out to 20 µm, this Thorlabs' gold-coated concave mirror should be chosen for applications in the IR spectral range if chromatic aberration is a concern. Please note that f = R/2 where R is the radius of curvature of the mirror.
Specifications
- Substrate Material: N-BK7
- Surface Irregularity: λ/4 @ 633 nm
- Clear Aperture: >90% of Diameter
- Thickness Tolerance: ±0.2 mm
- Surface Quality: 40-20 Scratch-Dig
- Diameter Tolerance: +0.0 mm / -0.2 mm
- Chamfer (Typical): 0.25 mm @ 45°
- Backside Surface: Fine Ground (Not Polished)
- Diameter: 75 mm
- Focal Length: 150 mm
- Coating: Gold
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