Name: 25.4mm Dia., 4mm Thick, 30' Wedge, BBAR (2000-5000nm) Coated, Barium Fluoride (BaF 2 ) Wedged Window
SKU: 23-719
Price: €370,00

25.4mm Dia., 4mm Thick, 30' Wedge, BBAR (2000-5000nm) Coated, Barium Fluoride (BaF₂) Wedged Window

Barium Fluoride (BaF₂) Wedged Windows

Stock #23-719 New

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€370,00

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€370,00

Qty 11+
€333,00

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Curve (pdf) eDrawings: eprt IGES PDF Drawings STEP: step

Abbe Number (v_d):

81.78

Axis Orientation:

Random

Bevel:

Protective as needed

Clear Aperture (%):

Clear Aperture CA (mm):

21.59

Diameter (mm):

25.40 +0.0/-0.13

Thickness (mm):

4.00 ±0.13

Coating:

BBAR (2000-5000nm)

Coating Specification:

R_avg <1.5% @ 2000-5000nm
R_abs <3.0% @ 2000-5000nm
R_avg <1.75% @ 2000-4000nm

Coefficient of Thermal Expansion CTE (10^-6/°C):

18.1

Density (g/cm³):

4.89

Edges:

Fine Ground

Index of Refraction n_d:

1.478 @ 0.5μm
1.451 @ 5μm
1.401 @ 10μm

Knoop Hardness (kg/mm²):

Poisson's Ratio:

0.343

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Barium Fluoride (BaF₂)

Surface Flatness (P-V):

2λ @ 633nm

Surface Quality:

60-40

Type:

Protective Window

Wavelength Range (nm):

2000 - 5000

Young's Modulus (GPa):

Wedge Angle:

30±15 arcmin

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

Product Family Description

30 Arcmin Wedge
Excellent Transmission from 200nm - 12μm
Resistant to High-Energy Radiation
Precision Flat Barium Fluoride (BaF₂) Windows Also Available

Barium Fluoride (BaF₂) Wedged Windows feature a 30 arcmin wedge to eliminate etalon effects, improving readout in detection and spectroscopy applications. With a low index of refraction of 1.48, these windows provide high transmission from 200nm to 12μm without the need of an anti-reflection (AR) coating. 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. Barium Fluoride (BaF₂) Wedged Windows are ideal for infrared spectroscopy, thermal imaging, and general UV-IR detection applications. Barium fluoride is also a fast scintillator and can be used for the detection X-rays, gamma rays, or other high energy particles.

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

25.4mm Dia., 4mm Thick, 30' Wedge, BBAR (2000-5000nm) Coated, Barium Fluoride (BaF2) Wedged Window

Regulatory Compliance

Product Family Description

25.4mm Dia., 4mm Thick, 30' Wedge, BBAR (2000-5000nm) Coated, Barium Fluoride (BaF₂) Wedged Window