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Non-Polarizing Plate Beamsplitters |
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Non-Polarizing 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.
RMI STANDARD
SPECIFICATIONS
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Angle incidence:
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45°
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| Materials: |
BK7, ZnSe |
Surface Figure:
BK7:
ZnSe:
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both surfaces
λ/20
at 633 nm,
λ/40
at 10.6 µm,
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Surface Quality:
BK7:
ZnSe:
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both surfaces
10-5
40-20
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| 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:
λ
< 2.0 µm
λ
= 10.6 µm
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10% ≤ R ≤
90% ± 3%
|R - Rs,P| ≤ 3%
R = 50% ± 5%
|R - Rs,P| ≤ 5%
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Anti-Reflection Coating:
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R ≤ 0.5% at 45º,
unpol.
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Last Updated ( Friday, 04 May 2007 )
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