Rocky Mountain Instrument Co.
1.303.664.5000
 

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Non-Polarizers » Plate Beamsplitters

Non-Polarizing Plate Beamsplitters divide an incident, monochromatic beam into reflected and transmitted components with the specified intensity ratio. They are designed for applications in which it is necessary to maintain the polarization characteristics of the incident beam.

The plate is coated on one side with an all dielectric, non-polarizing, partial reflection coating, and on the reverse side with a high efficiency, narrowband, anti-reflection coating.

 
 
non-polarizing-plate-beamsplitter
 
 
RMI Standard Specifications
Materials:
BK7, UVFS,
ZnSe
Angle of Incidence:
45º
Surface Figure:
BK7, UVFS:
ZnSe:
Both surfaces:
λ/20 at 632 nm
λ/40 at 10.6 µm
Surface Quality:
BK7, UVFS:
ZnSe:
Both surfaces:
10-5
40-20
Diameter Tolerance: + 0.000", – 0.010"
Thickness Tolerance: ± 0.010"
Wedge: ≤ 3 arc minutes
Bevels: 0.010" – 0.030" at 45º
Clear Aperture: Central 85% of diameter
Reflectance:
10% ≤ R ≤ 90% ± 3%
|R – Rs.p| ≤ 3%
Anti-Reflection Coating:
Unpolarized:
R ≤ 0.5% at 45º