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MTI supplies all kinds of high quality fluoride single crystals.
These crystals have been widely used for infrared optical components, such as window, mirror, lens, prism and substrate.
MTI has a state of art processing facility in China and provides you cost effective and high quality components.
If you have any need for fluoride single crystal substrate and components, please feel free to contact us at mti@mtikorea.co.kr
Chemical formula |
BaF2 |
CaF2 |
MgF2 |
LiF |
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Crystal structure |
Cubic |
Cubic |
Tetragonal |
Cubic |
Lattice constant (Å) |
6.196 |
5.462 |
a = 4.64 c = 3.06 |
4.026 |
Melting point (oC) |
1354 |
1418 |
1255 |
870 |
Density (g / cm3) |
4.88 |
3.18 |
3.18 |
2.60 |
Hardness |
3 |
4 |
6 |
4 |
Thermal expansion coef. (oC-1 x 10-6) |
18.1 |
18.85 |
13.7 |
37.0 |
Refractive index |
ho 1.47443 |
ho 1.43382 |
ho 1.37740 he 1.38945 |
ho 1.39212 |
Transmission waveband (microns) |
0.15 - 13.00 |
0.11 - 12.00 |
0.11 - 7.5 |
0.11 - 7.0 |
Transmission efficient |
> 93% @ 5 m > 75% @ 0.2 m |
> 94% @ 5 m > 85% @ 0.2 m |
> 93% @5 m > 85% @ 0.2 m |
> 85% @ 5 m > 65% @ 0.2 m |
Chromatic dispersion (hf-hc) |
0.00578 |
0.00455 |
0.00355 |
0.00395 |
Temperature coef. (dh/dt x 10-6) |
-15.2 ~ 6.2 @ 0.8 m |
-10. 6 @ 0.8 m |
2.3 ~ 1.7 @ 0.4 m |
-12.7 @ 0.6 m |
Crystal growth method |
Bridgeman |
Bridgeman |
Bridgeman |
Bridgeman |
Cleavage plane |
<111> |
<111> |
<100> or <110> |
<100> |
Max. Crystal size (mm) |
f 2" x 80 |
f 8" x 150 |
f 4" x 100 |
f 4" x 80 |
Application |
IR and UV window , prism, substrate |
IR window and Lens, prism |
VUV window and mirror, lens |
UV window and prism, without deliquescence |
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For physical property sheet of LiF, please click here. For the MSDS of LIF, Please click here.
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Working days : Monday to Saturday
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