25.4mm Dia., 4mm Thick, Barium Fluoride (BaF2) IR Window

• Customization: Available
• Usage: Lighting, Medical, Optical, Photography
• Type: Optical Windows
• Model NO.: OW
• Transmittance: >95%
• Shape: Flat
• Material: Baf2
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE
• Customized: Customized
• Transport Package: Inner Packing----Special Protective Packing for Op
• Specification: customized
• Trademark: Ebetter
• Origin: Shen Yang
• Production Capacity: 2000

Product Description

Product Description

 

Excellent Transmission from 200nm - 12μm

Resistant to High-Energy Radiation

Provide High Transmission without AR Coatings

Barium Fluoride (BaF2) Windows can be used in a variety of applications, such as infrared spectroscopy, due to their wide broadband transmission that extends from the deep ultraviolet to the long-wave infrared. Barium fluoride's low index of refraction of 1.48 provides high transmission without the need for anti-reflection coatings. Barium fluoride windows can be used up to 800°C in a dry environment, but prolonged exposure to moisture can degrade transmission in the vacuum ultraviolet range. While barium fluoride windows are less resistant to water than calcium fluoride, BaF2 windows are the most resistant optical fluoride to high-energy radiation, but feature lower UV transmittance. BaF2 has a Knoop hardness of 82.

Note: These optical windows are very sensitive to thermal shock.

Diameter	0.2-300mm
Thickness	0.1-100mm
Dimension tolerance	+/-0.02mm
Surface quality (scratch & dig)	20/10 or better
Clear aperture	>85%, >90%
Surface accuracy	λ/10
Parallelism	+/-30''
Bevel	0.1~0.3mm x 45 degree
Coating	AR or Custom

 

                                   
                               Barium Fluoride Window/BaF2 window

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