Aluminum Mirror, Zerodur, 152.4 mm, λ/20, 450-700 nm

High-Performance Zerodur Metallic Mirrors

The 60Z40ER.1 Broadband Aluminum Mirror is an excellent general purpose, broadband reflector. This 152.4 mm (6.0 inch) diameter mirror is made from a 23.5 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 ER.1 enhanced aluminum coating may be used wherever a broadband visible and near infrared reflector is needed. A multilayer dielectric stack deposited over the aluminum film boosts reflectance and improves the durability of the coating. The 60Z40ER.1 has an average reflectivity greater than 93% from 450-700 nm. This mirror has a λ/20 surface flatness and a 10-5 surface quality.

Specifications

Technical Specs

Wavelength Region
VIS
Wavelength Range
450-700 nm
Mirror Shape
Round
Diameter
152.4 mm
Mirror Size
Ø152.4 mm
Thickness
23.5 mm
Material
Zerodur^® or equivalent
Coating Type
Enhanced Aluminum
Coating Code
ER.1
Surface Quality
10-5 scratch-dig
Surface Flatness
λ/20 at 632.8 nm

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>93%, R_min>90 % @ 450-700 nm
Damage Threshold
0.5 J/cm² with 10 ns pulses at 532 nm, 20Hz
Diameter Tolerance
+0/-0.25 mm
Thickness Tolerance
±0.38 mm
Chamfers
0.51–1.52 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Wavelength Region
VIS
Wavelength Range
450-700 nm
Mirror Shape
Round
Diameter
152.4 mm
Mirror Size
Ø152.4 mm
Thickness
23.5 mm
Material
Zerodur^® or equivalent
Coating Type
Enhanced Aluminum
Coating Code
ER.1
Surface Quality
10-5 scratch-dig
Surface Flatness
λ/20 at 632.8 nm

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>93%, R_min>90 % @ 450-700 nm
Damage Threshold
0.5 J/cm² with 10 ns pulses at 532 nm, 20Hz
Diameter Tolerance
+0/-0.25 mm
Thickness Tolerance
±0.38 mm
Chamfers
0.51–1.52 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Resources & Downloads

3D Product Models

Other

60Z40ER.1 RoHS Certificate(265.3 kB, PDF)
60Z40ER.1_ROHS2-2021.pdf(280.9 kB, PDF)
ER.1 Raw Data.xlsx(237.2 kB, XLSX)

Related Products

Similar

Description	Compatibility
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Compatible

Description	Compatibility
Mirror Mount, 1.5 in. Post Mounted, 6.0 in. Diameter, Knob Adjustment	UNIVERSAL	Learn More
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