LiF crystals have the following exceptional properties that make it a very important optics crystal, high optical transmittance from the vacuum ultraviolet to the infrared spectrum region(0.11-7¦Ìm).and shows excellent transmittance in the VUV regions. LiF is applied in diffraction components for the X-ray, We can make them as Optical prisms,Lens,Wedges,windows etc.,Hangzhou Lambda Photonics Tech. can offer large volume fluoride crystal, our LiF crystals are especially suitable for Excimer or VUV windows.
Property of LiF crystal
|
Transmission Range |
0.11 ~ 7 |
|
Refractive Index at 0.5um |
1.3943 |
|
Reflection Loss at 0.5um |
5.3% (2 surfaces) |
|
Melting Point ( ¡æ ) |
870 |
|
Knoop Hardness (Kg.mm2 ) |
99.1(100) |
|
Elastic Coefficient |
C11=97.4; C12=40.4; C44=55.4 |
|
Apparent Elastic Limit |
11.2 Mpa (1620 psi) |
|
Poisson Ratio |
0.326 |
|
Solubility in 100g water at 20 (¡æ) |
0.27 |
|
Cleavage plane |
(100) |
Specifications
|
Size |
Diameter up to 60mm; |
|
Inclusion |
None visible, |
|
Dimension tolerance |
¡À0.1mm |
|
Oriential tolerance |
2 arc min. |
|
Angle tolerance |
10 arc min. |
|
Scratch/Dig code |
20/10 |
|
Parallelism |
20 arc Sec. |
|
Flatness |
¦Ë/8 @ 632.8 nm |
We product prisms, lenses, wedges, windows,wedges and other optical components according to customers'specifications and drawings: |
