These optics require special handling to avoid damage and maintain peak performance. Email us or Chat with a technical support representativeContact us Contact us for tips on proper handling, cleaning, and storage procedures.
Get Product Downloads
Abbe Number (vd):
81.78
Axis Orientation:
Random
Bevel:
Protective as needed
Clear Aperture (%):
85
Clear Aperture CA (mm):
43.18
Diameter (mm):
50.80 +0.00/-0.13
Thickness (mm):
5.00 ±0.13
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
18.1
Density (g/cm3):
4.89
Edges:
Fine Ground
Index of Refraction nd:
1.48
Knoop Hardness (kg/mm2):
82
Operating Temperature (°C):
Maximum: 800
Parallelism (arcmin):
<3
Poisson's Ratio:
0.343
Substrate:
Many glass manufacturers offer the same material characteristics under different trade names. Learn More
ISP Optics Barium Fluoride (BaF2) Windows provide excellent transmission from 0.2- 12μm without the need for an Anti-Reflection (AR) coating due to its low index of refraction. Barium Fluoride has similar physical properties to Calcium Fluoride, but features higher resistance to high-energy radiation. This makes Barium Fluoride ideal for vacuum UV (VUV) applications such as thermography or laser spectroscopy where high radiation resistance is required. ISP Optics Barium Fluoride (BaF2) Windows can be used up to 800°C in a dry environment, but prolonged exposure to moisture can degrade transmission in the ultraviolet range.
Note: These optical windows are very sensitive to thermal shock.
or view regional numbers
QUOTE TOOL
enter stock numbers to begin
Copyright 2023 | Edmund Optics, Ltd Unit 1, Opus Avenue, Nether Poppleton, York, YO26 6BL, UK
California Consumer Privacy Acts (CCPA): Do Not Sell or Share My Personal Information
California Transparency in Supply Chains Act