Rocky Mountain Instrument Co.

Optical Coatings:

Developed in conjunction with

Anti Reflection (AR) » IR Narrowband AR


2.0 µm ≤ λ ≤ 20.0 µm

Narrowband Anti Reflection coatings, often referred to as "V" coatings, reduce surface reflectance to less than 0.5% at the specified center wavelength and normal incidence.

These all dielectric coatings are sensitive to polarization, wavelength and angle of incidence. They are durable and highly resistant to laser damage.

RMI Standard Specifications
Angle of Incidence:
0º or 45º


R ≤ 0.5% at 0º
R ≤ 1.0% at 45º
Damage Threshold:
λ > 10.6 µm:
2 J/cm², 10 ns pulse