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All Products / Optics / Windows and Diffusers / UV and IR Windows / ISP Optics Zinc Selenide (ZnSe) Wedged Windows
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38.1mm Dia., 3mm Thick, 3° Wedge, ISP Optics Zinc Selenide (ZnSe) Wedged Window | ZC-WW3-38-3

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Bevel:
Protective as needed
Clear Aperture (%):
85
Clear Aperture CA (mm):
32.38
Diameter (mm):
38.10 +0.00/-0.13
Thickness (mm):
3.00 ±0.13
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
7.57
Density (g/cm3):
5.27
Edges:
Fine Ground
Index of Refraction nd:
2.631
Knoop Hardness (kg/mm2):
120
Poisson's Ratio:
0.28
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Zinc Selenide (ZnSe)
Surface Flatness (P-V):
2λ @ 10.6μm
Surface Quality:
60-40
Type:
Protective Window
Wavelength Range (nm):
600 - 18000
Young's Modulus (GPa):
67.2
Wedge Angle:
3° ±0.5
Model Number:
ZC-WW3-38-3

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
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Reach 240:
Compliant
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Product Family Description

ISP Optics Zinc Selenide (ZnSe) Wedged Windows feature a 30 arcmin or 3° wedge to eliminate fringe patterns from etalon effects as well as prevent cavity feedback. Zinc selenide has wide usage in high power CO2 laser systems due to its low absorption and high resistance to thermal shock. ISP Optics Zinc Selenide (ZnSe) Wedge Windows feature a broad wavelength range with excellent transmission in the IR, making them ideal for a wide variety of IR applications including thermal imaging, FLIR, and medical diagnostic systems.

Note: Special care should be taken when handling zinc selenide as it is a toxic material. Always wear rubber or plastic gloves to avoid risk of contamination.