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See all 17 Products in Family

12.7mm Sq 50R/50T, Polka-Dot Beamsplitter

Stock #47-020

$120.00

Qty 1-10
$120.00

Qty 11
$105.00

Volume Pricing
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Dimensions (mm):

12.7 x 12.7

Dimensional Tolerance (mm):

+0.0/-0.5

Substrate:

Fused Silica

Reflection/Transmission Ratio (R/T):

50/50

Reflection/Transmission Tolerance (%):

±5 @ 45°

Wavelength Range (nm):

250 - 2000

Coating:

Square Aluminum (AlMgF₂) Apertures

Parallelism (arcmin):

Angle of Incidence (°):

0 - 45

Center to Center Spacing (mm):

0.15

Clear Aperture (%):

Construction:

Polka-Dot

Minimum Aperture (mm):

2.00

Operating Temperature (°C):

150 Maximum

Surface Quality:

80-50

Thickness (mm):

1.50 ±0.1

Type:

Standard Beamsplitter

Regulatory Compliance

Reach 181:

Compliant

RoHS 2015:

Compliant

Product Family Description

UV to MWIR Spectrum Coverage
Many Beamsplitting Ratios Available
Not Angle Sensitive

Offering a distinct advantage over standard dielectric beamsplitters, Polka-Dot Beamsplitters have a constant reflection/transmission ratio over a large spectral range. The UV grade fused silica substrate has a vacuum deposited enhanced aluminum coating in fixed square sized apertures. Incident light is reflected by the coated area and is transmitted through the surrounding uncoated substrate. Since Polka-Dot Beamsplitters are not angle sensitive, they are ideal for splitting energy from a radiant light source.

Polka-Dot Beamsplitters offer no significant divergence from diffraction, nor are there performance issues with polarized sources. These beamsplitters are ideal for use with broadband, extended sources, such as tungsten, halogen, deuterium, and xenon lamps, and for use in monochromators, spectrophotometers, and other optical systems.