eo_logo
 
Product added to cart
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25.4mm Dia. x 5mm Thickness, 3-12μm Coated, ZnSe Window

×
Stock #39-411 3-4 days
×
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
£396.95
Qty 1-10
£396.95
Qty 11+
£350.20
Volume Pricing
Request Quote
Prices shown are exclusive of VAT/local taxes
Product Downloads

Specifications

General

Type:
Protective Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture (%):
90
Clear Aperture CA (mm):
22.86
Diameter (mm):
25.40 +0.0/-0.1
Thickness (mm):
5.00 ±0.1
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
120
Parallelism (arcmin):
<3
Poisson's Ratio:
0.28

Optical Properties

Coating:
BBAR (3000-12000nm)
Coating Specification:
Ravg ≤3.0% @ 3 - 12μm
Index of Refraction (nd):
2.631
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:
40-20
Wavelength Range (nm):
3000 - 12000

Material Properties

Coefficient of Thermal Expansion CTE (10-6/°C):
7.57
Density (g/cm3):
5.27

Regulatory Compliance

RoHS 2015:
Reach 224:
Certificate of Conformance:

Product Details

  • 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 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 TECHSPEC Zinc Selenide (ZnSe) Windows, apply uniform pressure and wear Latex finger cots or gloves to prevent contamination. These windows are available uncoated or with broadband anti-reflection coating in diameters ranging from 5 to 127mm. 


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.

Technical Information

AR COATED ZINC SELENIDE

Typical visible transmission of a 3mm thick ZnSe window coated with BBAR (1650-3000nm), BBAR (3000-12000nm), and BBAR (8000-12000nm coating).

This data is outside the design wavelength range of the BBAR coatings and thus is not guarenteed, but provides a reference for visible guide laser useage.

Click Here to Download Data

Typical transmission of a 3mm thick ZnSe window with BBAR (1650-3000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg <1% @ 1650 - 3000nm
Rabs <2% @ 1650 - 3000nm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick ZnSe window with BBAR (3000-12000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg <5.0% @ 3 - 12μm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a 3mm thick ZnSe window with BBAR (8000-12000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg ≤0.5% @ 8 - 12μm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Related Products

Frequently Purchased Together

Compatible Mounts

Title  Type Compare Stock Number   Price  Buy
25.4mm Optic Dia., Thin Mirror Mount, M4 Fixed #13-590 £16.57
Request Quote
  • In Stock
    ×
25.4mm Optic Dia., Thin Mirror Mount, 8-32 Fixed #13-591 £16.57
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, M4 Fixed #13-787 £16.57
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, 8-32 Fixed #13-788 £16.57
Request Quote
  • 3-4 days
    ×
25.4mm Optic Dia., 10mm Max Optic Thickness, Optic Mount Fixed #64-561 £25.93
Request Quote
  • 3-4 days
    ×
25.4mm Optic Dia., 13mm Max Optic Thickness, Optic Mount Fixed #64-562 £25.93
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., E-Series Kinematic Mount Adjustable - Tip-Tilt #15-866 £33.57
Request Quote
  • In Stock
    ×
25.4mm Optic Dia., Thin Mirror Mount, M4, Quick Start Optical Mounts Fixed #17-534 £50.57
Request Quote
  • Contact Us
    ×
25.4mm Optic Dia., Thin Mirror Mount, 8-32, Quick Start Optical Mounts Fixed #17-535 £50.57
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, M4, Quick Start Optical Mounts Fixed #17-536 £50.57
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, 8-32, Quick Start Optical Mounts Fixed #17-537 £50.57
Request Quote
  • Contact Us
    ×
2.0 - 35.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #03-668 £52.70
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., L-Slot Direct Mount Fixed #36-410 £56.52
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., Side Flange Direct Mount Fixed #36-414 £56.52
Request Quote
  • 3-4 days
    ×
9.5 - 73.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #36-605 £65.88
Request Quote
  • 3-4 days
    ×
25/25.4mm Diameter, E-Series Kinematic Mount, Quick Start Optical Mounts Adjustable - Tip-Tilt #17-521 £67.57
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., Kinematic Mount, 2-Screws Adjustable - Tip-Tilt #58-851 £77.35
Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., L-Slot and Rotation Direct Mount Adjustable - Rotary #36-411 £80.75
Request Quote
  • 3-4 days
    ×
25.4mm Optic Dia., Fixed Optic Mount, Quick Start Optical Mounts Fixed #17-515 £82.24
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., Kinematic Mount, 3-Screws Adjustable - Tip-Tilt #58-854 £84.15
Request Quote
  • In Stock
    ×
7.0 - 40.0 Optic Height, English Bar-Type Optic Holder Fixed #03-676 £84.15
Request Quote
  • 3-4 days
    ×
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder Fixed #55-530 £85.85
Request Quote
  • 3-4 days
    ×
19.5 - 108.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #03-670 £90.10
Request Quote
  • 3-4 days
    ×
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder Fixed #03-669 £91.80
Request Quote
  • 3-4 days
    ×
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder Fixed #03-666 £95.20
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., Optical Cell Assembly Fixed #36-461 Clearance £117.30
Request Quote
  • 3-4 days
    ×
25/25.4mm Dia., Kinematic Mount, 3-Screws, Quick Start Optical Mounts Adjustable - Tip-Tilt #17-523 £118.15
Request Quote
  • Contact Us
    ×
4.0 - 36.0mm Optic Dia., Self-Centering Jaw Clamp Fixed #16-077 £124.95
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., Stainless Steel Kinematic Mount, 2-Screws Adjustable - Tip-Tilt #26-815 New £127.50
Request Quote
  • Contact Us
    ×
2"/50.8mm Diameter, Bar Type Lens / Filter Holder, Quick Start Optical Mounts Fixed #17-530 £127.71
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., Stainless Steel Kinematic Mount, 3-Screws Adjustable - Tip-Tilt #26-818 New £144.50
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., X-Y Translating Optic Mount Adjustable - Linear (XY) #62-956 £219.30
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Diameter, X-Y Translating Quick Start Optical Mounts Adjustable - Linear (XY) #17-513 £256.06
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., Kinematic Mirror Mount Adjustable - Tip-Tilt #55-003 £266.90
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., Kinematic Mirror Mount with Micrometer Adjustable - Tip-Tilt #55-456 £286.45
Request Quote
  • 3-4 days
    ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp Fixed #16-078 £325.55
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., Kinematic Mirror Mount with Micrometer, Quick Start Optical Mounts Adjustable - Tip-Tilt #17-519 £328.10
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., Precision Gimbal Mount Adjustable - Gimbal #54-999 £365.50
Request Quote
  • 3-4 days
    ×
25/25.4mm ID, Precision Gimbal Mount, Quick Start Optical Mounts Adjustable - Gimbal #17-517 £410.77
Request Quote
  • Contact Us
    ×
25.0/25.4mm Optic Dia., X-Y-Z Translating Optic Mount Adjustable - Linear (XYZ) #62-959 £429.25
Request Quote
  • 3-4 days
    ×
25.0/25.4mm Optic Dia., 5 Axes Optical Mount Adjustable - Linear (XYZ) & Tip-Tilt #13-776 £599.25
Request Quote
  • 3-4 days
    ×