Sorry, this product is no longer offered for sale. It was discontinued on May 18, 2021

IR Beamsplitter, Zinc Selenide, 25.4 mm, 50R/50T Ratio

The ZNSBS10 IR Beamspliter is a 25.4 mm diameter, 3.00 mm thick Zinc Selenide beamsplitter with 50/50 reflection/transmission ratio optimized for 45° angle of incidence. This beamsplitter is designed for broadband infrared applications covering spectral range from 7 µm to 14 µm. The back surface of the beamsplitter has a 3 arc minutes wedge to reduce undesired interference effects caused by the back reflections from both surfaces of the optics.

Specifications

Technical Specs

Wavelength Range
7-14 µm
Diameter
25.4 mm
Material
Zinc Selenide
Coating Second Surface
AR coated
Angle of Incidence
45° ±3°
Reflection
50 ±10%
Transmission
50 ±10%
Surface Flatness
≤2 λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig

Diameter Tolerance
+0.00/-0.13 mm
Thickness
3.0 mm
Thickness Tolerance
± 0.13 mm
Parallelism
3 arc minutes
Clear Aperture
> central 85% of diameter
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Wavelength Range
7-14 µm
Diameter
25.4 mm
Material
Zinc Selenide
Coating Second Surface
AR coated
Angle of Incidence
45° ±3°
Reflection
50 ±10%
Transmission
50 ±10%
Surface Flatness
≤2 λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig

Diameter Tolerance
+0.00/-0.13 mm
Thickness
3.0 mm
Thickness Tolerance
± 0.13 mm
Parallelism
3 arc minutes
Clear Aperture
> central 85% of diameter
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics

Resources & Downloads

3D Product Models

Download CAD Files

Other

ZNSBS10 RoHS Certificate(702.4 kB, PDF)

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