Polka Dot Beamsplitters with Size (mm) 50.8 mm sq.

Polka dot beamsplitters provide constant reflection to transmission ratio over the entire 250 to 2000nm range using a fused silica substrate or 400 to 2000nm wavelength range with a B270 substrate.

The “polka dot” appearance of these beam splitters comes from the combination of a photolithography process and the vacuum deposition of aluminum. The result is a precise pattern of small aluminum “dots” on the glass substrate. The beam is split by reflection from the aluminized dots and transmission through the non-aluminized portion of the substrate.

Product SKUs

  • Polka Dot Beam Splitter, B270, 20:80, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-G-2080-50S
    $257.00
    2 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-G-2080-50S

    Reflecting Transmitting Ratio

    20:80

    Split Ratio Tolerance

    ± 5%

    Operating Range

    400 nm – 2.0 µ

    Substrate

    B270 Glass

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, B270, 30:70, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-G-3070-50S
    $257.00
    2 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-G-3070-50S

    Reflecting Transmitting Ratio

    30:70

    Split Ratio Tolerance

    ± 5%

    Operating Range

    400 nm – 2.0 µ

    Substrate

    B270 Glass

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, B270, 50:50, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-G-5050-50S
    $257.00
    2 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-G-5050-50S

    Reflecting Transmitting Ratio

    50:50

    Split Ratio Tolerance

    ± 5%

    Operating Range

    400 nm – 2.0 µ

    Substrate

    B270 Glass

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, B270, 80:20, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-G-8020-50S
    $257.00
    Available on backorder
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-G-8020-50S

    Reflecting Transmitting Ratio

    80:20

    Split Ratio Tolerance

    ± 5%

    Operating Range

    400 nm – 2.0 µ

    Substrate

    B270 Glass

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, B270, 90:10, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-G-9010-50S
    $257.00
    1 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-G-9010-50S

    Reflecting Transmitting Ratio

    90:10

    Split Ratio Tolerance

    ± 5%

    Operating Range

    400 nm – 2.0 µ

    Substrate

    B270 Glass

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, Fused Silica, 20:80, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-FS-2080-50S
    $274.00
    2 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-FS-2080-50S

    Reflecting Transmitting Ratio

    20:80

    Split Ratio Tolerance

    ± 5%

    Operating Range

    250 nm – 2.0 µ

    Substrate

    UV Grade Fused Silica

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, Fused Silica, 30:70, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-FS-3070-50S
    $274.00
    2 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-FS-3070-50S

    Reflecting Transmitting Ratio

    30:70

    Split Ratio Tolerance

    ± 5%

    Operating Range

    250 nm – 2.0 µ

    Substrate

    UV Grade Fused Silica

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, Fused Silica, 40:60, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-FS-4060-50S
    $274.00
    Available on backorder
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-FS-4060-50S

    Reflecting Transmitting Ratio

    40:60

    Split Ratio Tolerance

    ± 5%

    Operating Range

    250 nm – 2.0 µ

    Substrate

    UV Grade Fused Silica

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, Fused Silica, 50:50, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-FS-5050-50S
    $274.00
    2 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-FS-5050-50S

    Reflecting Transmitting Ratio

    50:50

    Split Ratio Tolerance

    ± 5%

    Operating Range

    250 nm – 2.0 µ

    Substrate

    UV Grade Fused Silica

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

  • Polka Dot Beam Splitter, Fused Silica, 80:20, 50.8 mm Sq.

    Diagram
    polka-dot-beam-splitter
    PBS-FS-8020-50S
    $274.00
    2 in stock
    Add to cart

    Polka Dot Beam Splitter Specifications | PBS-FS-8020-50S

    Reflecting Transmitting Ratio

    80:20

    Split Ratio Tolerance

    ± 5%

    Operating Range

    250 nm – 2.0 µ

    Substrate

    UV Grade Fused Silica

    Size (mm)

    50.8 mm sq.

    Size Tolerance

    +0.0 mm/-0.5 mm

    Thickness

    1.5 mm nominal

    Minimum Beam Diameter

    2 mm

    Coating Pattern

    Square coated apertures

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