Partial Reflective Coating

When a narrow wavelength light is incident to this interface, part of the light is reflected and part is transmitted. Such coatings always have high reflection for S-polarization radiation and high transmission for P-polarization radiation. The main application this coating is used for is beamsplitters. It is also widely used in inspection systems, so that we can get radiation in measurements of datum light.

 

 

Single Layer
Single Layer
Single Layer
R = 90.0% ± 1.0% @ 1064nm
R = 50.0% ± 2.0% @ 632.8nm
R = (R1 + R2)/2
R = 50.0% ± 5.0% @ 450 – 650nm
R = (R1 + R2)/2