FTIR Lithium Fluoride Window PLi01-
The FTIR (Fourier Transform Infrared Spectrometer) window of LiF material plays an important role in infrared spectroscopy analysis. Lithium fluoride is a colorless and transparent crystal with high transparency, low refractive index, good chemical stability, and thermal stability. These characteristics make lithium fluoride an ideal material for making FTIR window plates. It is widely used in spectral analysis, X-ray spectrometer, thermal imaging applications and other fields. In addition to lithium fluoride materials, micron optics can also provide FTIR window pieces made of calcium fluoride, barium fluoride, silicon, zinc selenide, zinc sulfide, fused silica and other materials.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dia | Customizable |
| ThK | Customizable |
| Surface Quality | 60-40 |
| Surface Accuracy | 5(3) |
| Parallelism | 3′ |
| Diameter Tolerance | 0.0/-0.1 |
| Thk Tolerance | ±0.1 mm |
| Transmission Range | 0.11-7μm |
| Substrate Material | Lithium Fluoride |
| Bevel | 0.35 mm |
| REACH | Compliant |
| ROHS | Compliant |
| Transmission Range [Substrate Material：Lithium Fluoride] | 0.11-7μm |
| Transmittance [Substrate Material：Lithium Fluoride；@0.6μm] | >94.8%@0.6μm |
| Reflection Loss [Substrate Material：Lithium Fluoride；@0.6μm(both surfaces)] | 5.2%@0.6μm(both surfaces) |
| Absorption Coefficienet [Substrate Material：Lithium Fluoride；@4.3μm] | 5.9×10⁻³@4.3μm |
| Structure [Substrate Material：Lithium Fluoride] | Cubic Crystal System |
| Cleavage Planes [Substrate Material：Lithium Fluoride] | <100> |
| Density [Substrate Material：Lithium Fluoride] | 2.639 g/cm³ |
| Melting Point [Substrate Material：Lithium Fluoride] | 848 ℃ |
| Thermal Conductivity [Substrate Material：Lithium Fluoride；@314K] | 11.3 @ 314K |
| Thermal Expansion [Substrate Material：Lithium Fluoride；@283K] | 37.0 @ 283K |
| Knoop Hardness [Substrate Material：Lithium Fluoride] | 415 kg/mm² |
| Specific Heat Capacity [Substrate Material：Lithium Fluoride] | 1562 J/(kg×K) |
| Dielectric Constant [Substrate Material：Lithium Fluoride；@1 MHz] | 7.33 @ 1 MHz |
| Young's Modulus (E) [Substrate Material：Lithium Fluoride] | 64.79 GPa |
| Shear Modulus(G) [Substrate Material：Lithium Fluoride] | 55.14 GPa |
| Bulk Modulus(K) [Substrate Material：Lithium Fluoride] | 62.03 GPa |
| Poisson Coefficient [Substrate Material：Lithium Fluoride] | 0.22 |
| Solubility [Substrate Material：Lithium Fluoride；@20℃] | 2.7g @ 20℃ |
| Molecular Weight [Substrate Material：Lithium Fluoride] | 25.9394 g/mol |
Datasheet
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