Rocky Mountain Instrument Co.
1.303.664.5000
 

Optical Coatings:

Developed in conjunction with Ext-Joom.com

Partial Reflection (PAR) » Output Coupler (VIS/NIR)

 

400 nm ≤ λ ≤ 2.0 µm

Partial Reflection coatings are widely used for beamsplitting, beam sampling and laser output coupling. They divide an incident, monochromatic beam into reflected and transmitted components with the specified intensity ratio.

Coatings for high power wavelengths use special materials that are able to withstand higher power than standard partial reflection coatings.

These all dielectric coatings are sensitive to polarization, wavelength and angle of incidence.

  vis-nir-par
RMI Standard Specifications
Angle of Incidence:
Reflectance: R < 90% ± 3%
R = 90% – 95% ± 2%
R = 96% – 98% ± 1%
R > 98% ± 0.5%
Damage Threshold:
At 1064 nm
 
 
10 J/cm2, 10 ns pulse