MT-Optics can supply many optical materials, like colorless optical glasses, color glasses, infrared materials, UV materials and also optical crystals.
All the material we provided are RoHS Compliant!
MT-Optics can provide all the material listed below:
Materials |
Refractive Index |
Transmission Range(um) |
Thermal Expansion Coefficient (10-6/K) |
Density(g/cm3) |
BK7 |
1.5164 (588nm) |
0.330 - 2.1 |
7.5 |
2.52 |
Fused Silica |
1.4858 (308nm) |
0.185 - 2.5 |
0.58 |
2.20 |
Quartz |
no=1.5427 ne=1.5518 (633nm) |
0.200 - 2.3 |
13.2||a;7.1||c |
2.65 |
CaF2 |
1.399 (5000nm) |
0.170 - 7.8 |
18.85 |
3.18 |
MgF2 |
no=1.3836 ne=1.3957 (405nm) |
0.120 - 7.0 |
13.7||a;8.48||c |
3.17 |
Sapphire |
1.755 (1000nm) |
0.180 - 4.5 |
8.4 |
3.98 |
Silicon |
3.426 (5000nm) |
1.2 - 7.0 |
2.55 |
2.33 |
Germanium |
4.004 (10000nm) |
2.0 - 14.0 |
5.5 |
5.33 |
ZnSe |
2.4028 (10600nm) |
0.55-20.0 |
7.6 |
5.27 |
YVO4 |
no=1.9500 ne=2.1554 (1300nm) |
0.400 - 5.0 |
4.43||a; 11.37||c |
4.22 |
Calcite |
no=1.6557 ne=1.4852 (633nm) |
0.210 - 2.3 |
5.68||a; 24.39||c |
2.7 |
a-BBO |
no=1.6749 ne=1.5555 (532nm) |
0.190 - 3.5 |
4.0||a; 36.0||c |
3.85 |
LiNbO3 |
no=2.2863 ne=2.2027 (633nm) |
0.370 - 4.5 |
14.8||a;4.1||c |
4.64 |
BK7
BK7 is an excellent general purpose material widely used in visible and NIR optical components. BK7 is a borosilicate crown optical glass.?
Fused Silica
Fused silica is a widely used material with high chemical purity, good thermal characteristics and excellent homogeneity. Very good thermal expansion characteristic is an outstanding feature of fused silica. Fused Silica is primarily used in wider thermal application. Fused silica includes UV grade and IR grade.?
Quartz
Although crystal quartz is made of SiO2, it is different from fused silica, it is a positive uniaxial birefringent crystal. It features its very small birefringent refractive index difference, so it is always used in waveplates and other polarization control application.
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CaF2
CaF2 is a cubic single crystal. It has good transmission from UV to middle infrared wavelength. It is always used in excimer laser components. While, it is a little hygroscopic and susceptible to thermal shock.
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MgF2
MgF2 is a tetragonal positive birefringent crystal. MgF2 has good chemical, mechanical and thermal characteristics compared with CaF2. Due to its high vacuum UV transmission and high damage threshold, MgF2 is usually used in VUV and excimer laser windows, polarizers, lenses and etc.
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Sapphire
Sapphire is a single crystal aluminum oxide (Al2O3). Its Mohs hardness is 9, it is one of the hardest materials. Sapphire has good mechanical strength, and it is also transparent from visible to IR spectrum. So, it is always used as window material where scratch resistance is required.
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Silicon
Silicon is a good IR material , it can be used from 1.2 to 7 microns, its peak transmission range is in 3-5 micron. Silicon can be used in some circumstances where weight is a concern as that the density of Silicon is similar to optical glass. Silicon material is widely used in security and military applications.
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Germanium
Germanium is widely used in far infrared wavelength, it is transparent from 2 micron to 17 micron. Germanium also has higher refractive index about 4 at 10.6 micron. Germanium is very popular in FLIR and imaging applications.
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Zinc Selenide
ZnSe is a material for production of optical window and lens for IR range. It is transparent from 0.5 micron to 19 micron. It is mainly used in CO2-laser application for its excellent imaging characteristics and high resistance to thermal shock.
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