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Lithium fluoride(LiF) window
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Lithium fluoride(LiF) optical window |
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Material |
Single crystal of Lithium fluoride(LiF) |
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Other Names |
Lithium fluoride window, LiF window, LiF wafer, LiF plate |
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Applicable wave band |
0.12μm ~ 7.0μm |
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Refractive Index |
1.3943@0.5μm |
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Melting Point |
870℃ |
| Thermal Conductivity |
11.3@314K |
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Kirschner Hardness |
99.1 (100) |
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Elasticity Coefficient |
C11=97.4;C12=40.4;C44=55.4 |
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Thermal expansion coefficient |
37×10-6 |
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Maximum size |
Diameter 50.8mm (Single crystal) |
| Material | Standard Size | Surface quality |
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Lithium fluoride(LiF) window (Single crystal window) or (Polycrystalline window) |
φ10.0mm x 1.0mm φ25mm x 1.0mm φ25.4mm x 5.0mm 10 x 10 x 1.0mm 15 x 15 x 2.0mm |
Polishing: Double side optical polished or Epi-polished Roughness: Ra 5~10nm, Ra<1.5nm,
Size Tolerance: +/-0.1mm
Thickness Tolerance: +/-0.1mm or +/-0.05mm
Parallelism: 1 minute, 30 seconds, 5 seconds or higher
Surface Finish: 60-40, 40-20, 20-10 (scratch-dig)
Surface Figure: 1/2λ, 1/4λ or higher
Chamfer: 0.25mm × 45°
Coating: Upon requirements |
Lithium fluoride (LiF) crystal have good optical transmission properties and can be used as Ultraviolet and Infrared optical window in the spectral range of 0.11 μm~7.5 μm. Especially in deep Ultraviolet(VUV). With the development of deep Ultraviolet technology in recent years, Becaise of Lithium fluoride (LiF) window have high transmittance and short cut-off wavelength in the deep ultraviolet band, It have received more and more attention.
At the same time, Lithium fluoride (LiF) crystal has excellent scintillation properties and has become an important crystal material in the fields of high-energy physics and nuclear physics, nuclear medicine and other fields.
We can customize different size and thickness of Lithium fluoride(LiF) optical window upon requirements, such as Lithium fluoride(LiF) round wafer, Square substrate and Cylinder, or Punch holes and other shapes.
Contact Us
- BIOTAIN CRYSTAL CO., LIMITED
- Tel: (+86) 1506 0796 451
- Fax: (+86) 0597 2212602
- Email: sales@crystal-material.com
- Work Time ( GMT +8 ):
- 9 AM ~ 6 PM, Monday to Friday
- Main office: A7, No. 501, Denggaoxi Road, Xipi street, Xinluo District, Longyan, Fujian, China
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