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UV-NIR Polka-Dot Beamsplitters

Various Beamsplitting Ratios Available
Insensitive to Angle of Incidence Changes
VIS-NIR Versions Available

UV-NIR Polka-Dot Beamsplitters feature a constant reflection/transmission ratio over a large spectral range. A vacuum deposited enhanced aluminum coating on fused silica substrates with fixed square apertures guarantees 30/70, 50/50, or 70/30 reflection/transmission ratios from 250 to 2000nm. Incident light is reflected by the coated area and is transmitted through the surrounding uncoated substrate. Since UV-NIR Polka-Dot Beamsplitters are not angle sensitive, they are ideal for splitting energy from a radiant light source with a beam diameter of at least 2mm. These beamsplitters are especially useful with broadband, extended sources, such as tungsten, halogen, deuterium, and xenon lamps, and for use in monochromators, spectrophotometers, and other optical systems.

Note: The surface of these beamsplitters is very sensitive and should never be touched when handling the optic. If cleaning is required to remove dust particles, non-contact cleaning using clean compressed air is recommended.

Common Specifications

Center to Center Spacing (mm):

0.15

Clear Aperture (%):

Construction:

Polka-Dot

Dimensional Tolerance (mm):

+0.0/-0.5

Thickness (mm):

1.50 ±0.1

Angle of Incidence (°):

0 - 45

Coating:

Square Aluminum (AlMgF₂) Apertures

Minimum Aperture (mm):

2.00

Reflection/Transmission Tolerance (%):

±5 @ 45°

Substrate:

Fused Silica (Corning 7980)

Surface Quality:

80-50

Wavelength Range (nm):

250 - 2000

Operating Temperature (°C):

150 Maximum

Products
Product Details
Technical Information
Accessories
Related Products
Resources

Products

Dia. (mm)	Dimensions (mm)	Substrate	Reflection/Transmission Ratio (R/T)	Wavelength Range (nm)	Thickness (mm)	Stock Number	Price	Buy

12.70 12.70	- -	Fused Silica Fused Silica	20/80 20/80	250 - 2000 250 - 2000	1.50 1.50	#18-708	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
12.70 12.70	- -	Fused Silica Fused Silica	30/70 30/70	250 - 2000 250 - 2000	1.50 1.50	#47-610	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
12.70 12.70	- -	Fused Silica Fused Silica	50/50 50/50	250 - 2000 250 - 2000	1.50 1.50	#46-457	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
12.70 12.70	- -	Fused Silica Fused Silica	70/30 70/30	250 - 2000 250 - 2000	1.50 1.50	#47-606	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
12.70 12.70	- -	Fused Silica Fused Silica	80/20 80/20	250 - 2000 250 - 2000	1.50 1.50	#18-714	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
- -	12.7 x 12.7 12.7 x 12.7	Fused Silica Fused Silica	20/80 20/80	250 - 2000 250 - 2000	1.50 1.50	#18-709	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
- -	12.7 x 12.7 12.7 x 12.7	Fused Silica Fused Silica	30/70 30/70	250 - 2000 250 - 2000	1.50 1.50	#47-611	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
- -	12.7 x 12.7 12.7 x 12.7	Fused Silica Fused Silica	50/50 50/50	250 - 2000 250 - 2000	1.50 1.50	#47-020	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
- -	12.7 x 12.7 12.7 x 12.7	Fused Silica Fused Silica	70/30 70/30	250 - 2000 250 - 2000	1.50 1.50	#47-607	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
- -	12.7 x 12.7 12.7 x 12.7	Fused Silica Fused Silica	80/20 80/20	250 - 2000 250 - 2000	1.50 1.50	#18-715	223.30 S$223.30 Qty 11+ S$185.60 Request Quote	3-5 days ×
25.40 25.40	- -	Fused Silica Fused Silica	20/80 20/80	250 - 2000 250 - 2000	1.50 1.50	#18-710	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
25.40 25.40	- -	Fused Silica Fused Silica	30/70 30/70	250 - 2000 250 - 2000	1.50 1.50	#47-604	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
25.40 25.40	- -	Fused Silica Fused Silica	50/50 50/50	250 - 2000 250 - 2000	1.50 1.50	#46-458	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
25.40 25.40	- -	Fused Silica Fused Silica	70/30 70/30	250 - 2000 250 - 2000	1.50 1.50	#47-608	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
25.40 25.40	- -	Fused Silica Fused Silica	80/20 80/20	250 - 2000 250 - 2000	1.50 1.50	#18-716	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
- -	25.4 x 25.4 25.4 x 25.4	Fused Silica Fused Silica	20/80 20/80	250 - 2000 250 - 2000	1.50 1.50	#18-711	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
- -	25.4 x 25.4 25.4 x 25.4	Fused Silica Fused Silica	30/70 30/70	250 - 2000 250 - 2000	1.50 1.50	#47-605	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
- -	25.4 x 25.4 25.4 x 25.4	Fused Silica Fused Silica	50/50 50/50	250 - 2000 250 - 2000	1.50 1.50	#46-459	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
- -	25.4 x 25.4 25.4 x 25.4	Fused Silica Fused Silica	70/30 70/30	250 - 2000 250 - 2000	1.50 1.50	#47-609	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
- -	25.4 x 25.4 25.4 x 25.4	Fused Silica Fused Silica	80/20 80/20	250 - 2000 250 - 2000	1.50 1.50	#18-717	290.00 S$290.00 Qty 11+ S$240.70 Request Quote	3-5 days ×
38.00 38.00	- -	Fused Silica Fused Silica	20/80 20/80	250 - 2000 250 - 2000	1.50 1.50	#18-712	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
38.00 38.00	- -	Fused Silica Fused Silica	30/70 30/70	250 - 2000 250 - 2000	1.50 1.50	#48-503	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
38.00 38.00	- -	Fused Silica Fused Silica	50/50 50/50	250 - 2000 250 - 2000	1.50 1.50	#46-460	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
38.00 38.00	- -	Fused Silica Fused Silica	70/30 70/30	250 - 2000 250 - 2000	1.50 1.50	#48-504	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
38.00 38.00	- -	Fused Silica Fused Silica	80/20 80/20	250 - 2000 250 - 2000	1.50 1.50	#18-718	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
- -	38.0 x 38.0 38.0 x 38.0	Fused Silica Fused Silica	20/80 20/80	250 - 2000 250 - 2000	1.50 1.50	#18-713	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
- -	38.0 x 38.0 38.0 x 38.0	Fused Silica Fused Silica	30/70 30/70	250 - 2000 250 - 2000	1.50 1.50	#18-720	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
- -	38.0 x 38.0 38.0 x 38.0	Fused Silica Fused Silica	50/50 50/50	250 - 2000 250 - 2000	1.50 1.50	#46-461	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
- -	38.0 x 38.0 38.0 x 38.0	Fused Silica Fused Silica	70/30 70/30	250 - 2000 250 - 2000	1.50 1.50	#18-721	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
- -	38.0 x 38.0 38.0 x 38.0	Fused Silica Fused Silica	80/20 80/20	250 - 2000 250 - 2000	1.50 1.50	#18-719	482.85 S$482.85 Qty 11+ S$401.65 Request Quote	3-5 days ×
- -	50.8 x 50.8 50.8 x 50.8	Fused Silica Fused Silica	50/50 50/50	250 - 2000 250 - 2000	1.50 1.50	#48-505	1,044.00 S$1,044.00 Qty 11+ S$868.55 Request Quote	3-5 days ×

Product Details

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.

Technical Information

Accessories

Resources

Filter

An Introduction to Optical Coatings

Optical coatings are used to influence the transmission, reflection, or polarization properties of an optical component.

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NIR (Near Infrared)

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VIS/NIR Coating

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The Correct Material for Infrared (IR) Applications

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What are Beamsplitters?

Optical components that create two beams by splitting incident light are beamsplitters. Read more about the different types of beamsplitters at Edmund Optics.

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Introduction to Beamsplitters

Beamsplitters do exactly what their name implies: split incident light beams.

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Selecting the Right Beamsplitter

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What is a plate or "mirror-type" beamsplitter?

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What is a pellicle beamsplitter and when should I use it?

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I would like to split light from a circularly polarized laser source into two beams. What happens when it passes through a cube beamsplitter – both non-polarizing and polarizing?

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What is the difference between using a cube beamsplitter and a plate (mirror-type) beamsplitter?

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When you say a beamsplitter has % transmission and % reflection, is that across the entire spectrum?

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Is there such a thing as a variable density beamsplitter?

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What are some advantages of using one cube beamsplitter type compared to another?

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What are some advantages of using one plate beamsplitter type compared to another?

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What is the difference between polarizing and non-polarizing beamsplitters?

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Beamsplitter

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Cube Beamsplitter

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Dichroic Beamsplitter

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Pellicle Beamsplitter

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UV vs. IR Grade Fused Silica

UV grade fused silica is ideal for UV and visible applications, but IR grade fused silica has better transmission in the IR due to a lack of OH- impurities.

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Hyperspectral & Multispectral Imaging – TRENDING IN OPTICS: EPISODE 7

Hyperspectral and multispectral imaging are imaging technologies that capture information from a broader portion of the electromagnetic spectrum.

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You offer many substrates for UV and IR applications. How do I know which is best for me?

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Does the polarization of light change when it passes through a beamsplitter?

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I would like to split light from a circularly polarized laser source into two beams. What happens when it passes through a cube beamsplitter – both non-polarizing and polarizing?

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Do you have C-Mount components to make an in-line illumination assembly?

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Axial Illumination

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Non-Polarizing Beamsplitter

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Polarizing Beamsplitter

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Optical Glass

Choosing the right optical glass is important. Find out factors and properties on how to select the right optical glass at Edmund Optics.

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Do you have mounts for square or rectangular optics?

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Understanding Surface Quality Specifications

The surface quality of optical components the scattering off of its surface, which is especially important in laser optics applications.

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A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

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Parallelism

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Plate Beamsplitter

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Transmission

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How do I clean my optics?

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Clear Aperture (CA)

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Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

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Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

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Surface Quality

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UV-NIR Polka-Dot Beamsplitters

Protect your investment.

Common Specifications

Products

Product Details

Technical Information

Accessories

Related Products

Resources

An Introduction to Optical Coatings

NIR (Near Infrared)

VIS/NIR Coating

The Correct Material for Infrared (IR) Applications

Infrared (IR) Spectrum

What are Beamsplitters?

Introduction to Beamsplitters

Selecting the Right Beamsplitter

Selecting the Right Beam Expander

What is a plate or "mirror-type" beamsplitter?

What is a pellicle beamsplitter and when should I use it?

I would like to split light from a circularly polarized laser source into two beams. What happens when it passes through a cube beamsplitter – both non-polarizing and polarizing?

What is the difference between using a cube beamsplitter and a plate (mirror-type) beamsplitter?

When you say a beamsplitter has __% transmission and __% reflection, is that across the entire spectrum?

Is there such a thing as a variable density beamsplitter?

What are some advantages of using one cube beamsplitter type compared to another?

What are some advantages of using one plate beamsplitter type compared to another?

What is the difference between polarizing and non-polarizing beamsplitters?

Beamsplitter

Cube Beamsplitter

Dichroic Beamsplitter

Pellicle Beamsplitter

UV vs. IR Grade Fused Silica

Hyperspectral & Multispectral Imaging – TRENDING IN OPTICS: EPISODE 7

You offer many substrates for UV and IR applications. How do I know which is best for me?

Does the polarization of light change when it passes through a beamsplitter?

I would like to split light from a circularly polarized laser source into two beams. What happens when it passes through a cube beamsplitter – both non-polarizing and polarizing?

Do you have C-Mount components to make an in-line illumination assembly?

Axial Illumination

Non-Polarizing Beamsplitter

Polarizing Beamsplitter

Optical Glass

Do you have mounts for square or rectangular optics?

Understanding Surface Quality Specifications

Removing Protective Plastic Coating

Parallelism

Plate Beamsplitter

Transmission

How do I clean my optics?

Clear Aperture (CA)

Edmund Optics Global Manufacturing Facilities

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Surface Quality

When you say a beamsplitter has % transmission and % reflection, is that across the entire spectrum?