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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

20mm Dia., 2mm Thick, Uncoated, Magnesium Fluoride Window

Magnesium Fluoride (MgF2) Windows

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Stock #87-704 3-5 days
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S$416.15
Qty 1-10
S$416.15
Qty 11+
S$366.85
Volume Pricing
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Specifications

General

Type:
Protective Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture (%):
90
Clear Aperture CA (mm):
18.00
Diameter (mm):
20.00 +0.0/-0.1
Thickness (mm):
2.00 ±0.1
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
415
Parallelism (arcmin):
<1
Poisson's Ratio:
0.271
Young's Modulus (GPa):
138

Optical Properties

Abbe Number (vd):
106.22
Coating:
Uncoated
Index of Refraction (nd):
1.377
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Magnesium Fluoride (MgF2)
Surface Flatness (P-V):
λ/2
Surface Quality:
40-20
Wavelength Range (nm):
120 - 7000

Material Properties

Coefficient of Thermal Expansion CTE (10-6/°C):
13.7
Density (g/cm3):
3.18

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Details

  • Excellent Transmission from 120nm to 7μm
  • Rugged and Durable
  • Resistant to Chemical Etching

TECHSPEC® Magnesium Fluoride (MgF2) Windows offer excellent broadband transmission from the deep-UV to the mid-infrared. DUV transmission makes them ideal for use at the Hydrogen Lyman-alpha line and for UV radiation sources and receivers, as well as excimer laser applications. MgF2 is a rugged material resistant to chemical etching, laser damage, and mechanical and thermal shock. TECHSPEC® Magnesium Fluoride (MgF2) Windows have a Knoop Hardness of 415 and index of refraction of 1.38. The windows are offered in diameters ranging from 5 to 75mm.

Technical Information

Related Products

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

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