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  • >FTIR Barium Fluoride Windows

    • FTIR Barium Fluoride Windows

    The FTIR (Fourier Transform Infrared Spectrometer) window plate made of barium fluoride (BaF2) material is an important optical component. Barium fluoride crystals have excellent physical and chemical properties, such as high transparency, high refractive index stability, and good mechanical properties. Its density is about 4.89g/cm ³, melting point is 1280 ℃, thermal expansion coefficient is 1.81 × 10 ^ -6/℃, thermal conductivity is 11.72J/(k · m · s), etc. It is widely used in infrared spectrometers, laser systems, optical instruments and other fields. In addition to barium fluoride materials, micron optics can also provide FTIR window pieces made of calcium fluoride, lithium fluoride, silicon, zinc selenide, zinc sulfide, fused silica and other materials.

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    Technical Parameter

    Material Data

    Transmittance

    Application Field

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      Dia(mm) ThK(mm) Surface Quality Surface Accuracy Substrate Material Compare
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    Infrared polycrystalline barium fluoride
    		 
    More+ Less 6 1 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ6mm，ThK 1mm，FTIR Barium Fluoride Windows

    Number：PBa01B005

    Dia(mm)：6 ThK(mm)：1 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 10 1 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ10mm，ThK 1mm，FTIR Barium Fluoride Windows

    Number：PBa01B006

    Dia(mm)：10 ThK(mm)：1 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 12 1 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ12mm，ThK 1mm，FTIR Barium Fluoride Windows

    Number：PBa01C014

    Dia(mm)：12 ThK(mm)：1 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 12 3 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ12mm，ThK 3mm，FTIR Barium Fluoride Windows

    Number：PBa01C003

    Dia(mm)：12 ThK(mm)：3 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 12.7 1 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ12.7mm，ThK 1mm，FTIR Barium Fluoride Windows

    Number：PBa01C015

    Dia(mm)：12.7 ThK(mm)：1 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 13 1 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ13mm，ThK 1mm，FTIR Barium Fluoride Windows

    Number：PBa01C016

    Dia(mm)：13 ThK(mm)：1 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 13 2 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ13mm，ThK 2mm，FTIR Barium Fluoride Windows

    Number：PBa01C012

    Dia(mm)：13 ThK(mm)：2 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 15 2 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ15mm，ThK 2mm，FTIR Barium Fluoride Windows

    Number：PBa01C017

    Dia(mm)：15 ThK(mm)：2 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 17.5 4 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ17.5mm，ThK 4mm，FTIR Barium Fluoride Windows

    Number：PBa01D004

    Dia(mm)：17.5 ThK(mm)：4 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
    More+ Less 19 2 60-40 5(3) Infrared polycrystalline barium fluoride

    Φ19mm，ThK 2mm，FTIR Barium Fluoride Windows

    Number：PBa01D010

    Dia(mm)：19 ThK(mm)：2 Surface Quality：60-40 Surface Accuracy：5(3) Parallelism：3′ Diameter Tolerance(mm)：0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.4-14μm Substrate Material：Infrared polycrystalline barium fluoride Bevel(mm)：0.35 Chipping(mm)：0.35 REACH：Compliant ROHS：Compliant
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    Material Data
    Optical Properties
    Transmission Range
    		0.15-14μm
    Transmittance>94%@0.35nm-10.8μm
    Refractive Index

    1.462@2.58μm

    1.45@5μm

    Reflection Loss

    6.8%@2.58μm(both surfaces)

    6.5%@5μm(both surfaces)

    5.3%@10.35μm(both surfaces)

    Absorption Coefficienet3.2×10-4@6μm
    StructureCubic Crystal System
    Cleavage Planes<111>
    Physical Properties
    Density[g/cm3]4.89
    Melting Point [℃]1386
    ThermalConductivity [W/(m×K)]11.72 @ 286K
    Thermal Expansion [10-6/K]18.1 @ 273K
    Knoop Hardness [kg/mm2]82
    Specific Heat Capacity [J/(kg×K)]410
    Dielectric Constant7.33 @ 1 MHz
    Young's Modulus (E) [GPa]53.07
    Shear Modulus(G) [GPa]25.4
    Bulk modulus(K) [GPa]56.4
    Poisson Coefficient0.343
    Chemical Properties
    Solubility / g/L1.7g @ 20℃
    Molecular Weight / g/mol175.3238


    Barium Fluoride Transmittance CurveBarium Fluoride Transmittance Curve

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