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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