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25.4mm Dia 30R/70T, VIS-NIR Polka-Dot Beamsplitters

VIS-NIR Polka-Dot Beamsplitters

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Stock #15-985 Contact Us
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₹11,832
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₹11,832
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₹10,057
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Angle of Incidence (°):
0 - 45
Center to Center Spacing (mm):
0.15
Clear Aperture (%):
90
Coating:
Square Aluminum (AlMgF2) Apertures
Construction:
Polka-Dot
Diameter (mm):
25.40 +0.0/-0.5
Minimum Aperture (mm):
2.00
Operating Temperature (°C):
150 Maximum
Parallelism (arcmin):
<3
Reflection/Transmission Ratio (R/T):
30/70
Reflection/Transmission Tolerance (%):
±5 @ 45°
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
80-50
Thickness (mm):
1.65 ±0.1
Type:
Standard Beamsplitter
Wavelength Range (nm):
400 - 2000

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
REACH 241:

Product Family Description

  • 50/50 and 30/70 Reflection/Transmission Ratios Available
  • B270 Substrates for High Performance from 400 – 2000nm
  • UV-NIR Versions Available

VIS-NIR Polka-Dot Beamsplitters feature a constant reflection/transmission ratio over the VIS to NIR spectrum.  A vacuum deposited enhanced aluminum coating on SCHOTT B270 substrates, with fixed square apertures guarantees 30/70, 50/50 reflection/transmission ratios from 400 to 2000nm. Incident light is reflected by the coated area and is transmitted through the surrounding uncoated substrate. VIS-NIR Polka-Dot Beamsplitters are not angle sensitive, therefore 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, 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.

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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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Introduction to Beamsplitters

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

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Selecting the Right Beamsplitter

Continuing from where Part I: X-Y Setup ends, learn how to add a Z-axis to an existing X-Y configuration to achieve three degrees of freedom.

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Selecting the Right Beam Expander

Edmund Optics offers both fixed power and zoom beam expanders. Knowing which beam expander is right for your application can greatly improve system efficiency.

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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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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

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

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?

Removing Protective Plastic Coating

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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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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Parallelism

Plate Beamsplitter

Transmission

How do I clean my optics?

Clear Aperture (CA)

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

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

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