Rocky Mountain Instrument Co.

Optical Coatings:

Developed in conjunction with

Anti Reflection (AR) » UV Narrowband AR 


193 nm ≤ λ ≤ 400 nm

Narrowband Anti Reflection coatings, often referred to as "V" coatings, substantially reduce surface reflectance at the specified center wavelength.

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
Reflectance: Unpolarized
λ > 222 nm:
R ≤ 0.25% at 0º
R ≤ 0.5% at 45º
λ ≤ 222 nm:
R ≤ 1.0% at 0º
R ≤ 1.5% at 45º
Damage Threshold:
λ > 248 nm:
1.5 J/cm², 10ns pulse
λ > 355 nm:
3.5 J/cm², 10 ns pulse (UVFS)