Infra-red
Broadband AR Coatings |
| |
- Coatings for 3 - 5 m and 8 - 12 m bands
- Coatings for ZnSe or Ge
|
| Infra-red broadband anti-reflection
coatings are offered for the two broad spectral passbands of 3 -
5 m and 8 - 12 m. Coatings are designed for the refractive index
of the substrate so it is necessary to offer separate coatings for
different substrate materials. Standard coatings are offered for
Zinc Selenide and Germanium. These coatings are highly durable and
can be cleaned repeatedly using normal optics handling techniques.
They are suitable for high power laser use such as that emitted
from a CO2 laser. |
Specifications |
Angle of Incidence |
0 or 45deg |
Reflectance |
Rave <0.5% @ 0 |
Rave |
<1.0% @ 45 |
Absorption |
< 0.1% per surface |
Damage Threshold |
>5 kw / cm2 |
Durability |
Meet adhesion and abrasion
per MIL-C-675 |
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IR Coatings