Protected Gold Mirrors
Protected gold is ideal for use in the IR wavelength range. A protective dielectric overcoat is layered over the gold to help protect it from damage and make cleaning easier. These optics provide >96% average reflectance from 800 nm to 20 μm. Like other mirrors with metallic coatings, these mirrors are relatively insensitive to angle of incidence。
Specifications
|
Item
|
BK7 Gold Mirror
|
|
Reflectance (Ave)
|
>96% for 800 nm - 20 μm
|
|
Diameter Tol
|
+0.0，-0.1mm
|
|
Thickness Tol
|
+/-0.1mm
|
|
Clear Aperture
|
>85%
|
|
Parallelism
|
1′（Standard）
|
|
Surface Quality
|
40/20（Standard）
|
|
Flatness
|
λ/10
|
|
Damage Threshold
|
2 J/cm2 at 1.064 µm, 10 ns, 10 Hz, Ø1.000 mm
|
Standard
|
Part No
|
Dimension
|
Thickness
|
|
MIR105-Au-T6
|
Dia12.7
|
6.0
|
|
MIR110-Au-T3
|
Dia25.4
|
3.0
|
|
MIR110-Au-T6
|
Dia25.4
|
6.0
|
|
MIR205-Au-T2
|
12.7x12.7
|
6.0
|
|
MIR205-Au-T2
|
25.4x25.4
|
6.0
|