Silver Mirror, Borofloat, 12.7 mm, λ/10, 480-20,000 nm

Model: 05D20ER.2

$80

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Product Series Overview

Standard Borofloat 33 Metallic Mirrors

The 05D20ER.2 Broadband Silver Mirror is an excellent general purpose, broadband reflector. This 12.7 mm (1/2 inch) diameter mirror is made from a 3.1 mm thick Borofloat® 33 substrate which is coated with the ER.2 silver coating. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. Our ER.2 protected silver coating is composed of a low emissivity silver film fully encapsulated by a multilayer dielectric stack to prevent oxidation. This coating has excellent broadband reflectivity in the IR, while maintaining very good performance in the visible and near IR. The 05D20ER.2 has an average reflectivity greater than 96% from 480–1100 nm and greater than 98.5% from 1.1–20 μm. This mirror has a λ/10 surface flatness and a 20-10 surface quality. This product is also available in 10-piece saving pack .

Specifications

Technical Specs

Wavelength Region
Broadband
Wavelength Range
480-20000 nm
Mirror Shape
Round
Diameter
12.7 mm
Mirror Size
Ø12.7 mm
Thickness
3.1 mm
Material
Borofloat® 33
Coating Type
Protected Silver
Coating Code
ER.2
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Angle of Incidence
0-45°

Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>96%, R_min>93% @ 480-1100 nm;R_avg>98.5%, R_min>97% @ 1.1-20 µm
Damage Threshold
1 J/cm² with 10 ns pulses at 1064 nm, 20Hz
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Wavelength Region
Broadband
Wavelength Range
480-20000 nm
Mirror Shape
Round
Diameter
12.7 mm
Mirror Size
Ø12.7 mm
Thickness
3.1 mm
Material
Borofloat® 33
Coating Type
Protected Silver
Coating Code
ER.2
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10 at 632.8 nm
Angle of Incidence
0-45°

Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>96%, R_min>93% @ 480-1100 nm;R_avg>98.5%, R_min>97% @ 1.1-20 µm
Damage Threshold
1 J/cm² with 10 ns pulses at 1064 nm, 20Hz
Diameter Tolerance
+0/-0.13 mm
Thickness Tolerance
±0.25 mm
Chamfers
0.25–0.76 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Resources & Downloads

Other

05D20ER.2 RoHS Certificate(704.4 kB, PDF)
ER.2 Raw Data.xlsx(205.4 kB, XLSX)

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