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All Products / Optics / Windows and Diffusers / UV and IR Windows / ISP Optics Magnesium Fluoride (MgF2) Windows
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50.8mm Dia., 3mm Thick, Uncoated, ISP Optics Magnesium Fluoride (MgF2) Window | MF-W-50-3

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Abbe Number (vd):
106.22
Bevel:
Protective as needed
Clear Aperture (%):
85
Clear Aperture CA (mm):
43.18
Diameter (mm):
50.80 +0.00/-0.13
Thickness (mm):
3.00 ±0.13
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
13.7
Density (g/cm3):
3.18
Edges:
Fine Ground
Index of Refraction nd:
1.377
Knoop Hardness (kg/mm2):
415
Parallelism (arcmin):
<3
Poisson's Ratio:
0.271
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Magnesium Fluoride (MgF2)
Surface Flatness (P-V):
2λ
Surface Quality:
40-20
Type:
Protective Window
Wavelength Range (nm):
120 - 7000
Young's Modulus (GPa):
138
Model Number:
MF-W-50-3

Regulatory Compliance

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

  • Excellent Transmission from 0.12 to 7μm
  • Rugged and Durable
  • Resistant to Chemical Etching

ISP Optics Magnesium Fluoride (MgF2) Windows feature a low refractive index and high transmission from the Deep UV (DUV) to the Mid-Wave Infrared (MWIR), without the need for an Anti-Reflection (AR) coating. Magnesium Fluoride is extremely durable, being resistant to mechanical and thermal shock. Featuring strong resistance to chemical etching and stability in water, these windows are able to be used in harsh external environments. ISP Optics Magnesium Fluoride (MgF2) Windows are ideal for a wide range of applications from use in the DUV for Hydrogen Lyman-alpha line applications and excimer laser applications, to applications requiring transparency across multiple wavelengths such as spectroscopy and fluorescence imaging.