Name: 25mm Dia. x 3mm Thickness, 8-12μm Coated, ZnSe Window
Brand: TECHSPEC
SKU: 68-501
Price: S$581.25

Bevel:

Protective as needed

Clear Aperture (%):

Clear Aperture CA (mm):

22.50

Diameter (mm):

25.00 +0.0/-0.1

Thickness (mm):

3.00 ±0.1

Coating:

BBAR (8000-12000nm)

Coating Specification:

R_avg ≤0.5% @ 8 - 12μm

Coefficient of Thermal Expansion CTE (10^-6/°C):

7.57

Density (g/cm³):

5.27

Edges:

Fine Ground

Index of Refraction n_d:

2.631

Knoop Hardness (kg/mm²):

120

Parallelism (arcmin):

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):

λ/10 @ 10.6μm

Surface Quality:

60-40

Type:

Protective Window

Wavelength Range (nm):

8000 - 12000

Type of Window:

Crystal

Regulatory Compliance

RoHS 2015:

Compliant

Reach 224:

Compliant

Certificate of Conformance:

View

Product Description

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.

Product Family Description

Low Dispersion
Available Uncoated or AR Coated
Ideal for Thermal Imaging, FLIR, and Medical Systems

TECHSPEC® Zinc Selenide (ZnSe) Windows are ideal for a wide variety of infrared applications including thermal imaging, FLIR, and medical systems. This chemically vapor deposited material has wide usage in high power CO₂ laser systems because of its low absorption coefficient and high resistance to thermal shock. Zinc Selenide (ZnSe) is a relatively soft material that scratches easily and it is not recommended in harsh environments because its Knoop Hardness is only 120. When handling, apply uniform pressure and wear Latex finger cots or gloves to prevent contamination.

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.

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