Optical Crystals
Optical crystals & glass, such as Quartz, YVO4, Calcite, a-BBO, LiNbO3, Undoped YAG, Sapphire, CaF2, MgF2, BK7, etc. are widely used in IR optics and UV optics. CASIX manufactures high transparency and low loss optical windows, prisms, lenses, achromatic lenses and parallel planes by these optical materials.
CASIX has strong capability in fabricating optical components with various optical materials. The most important material properties to consider for an optical element are transmission versus wavelength, index of refraction, thermal characteristics, mechanical and chemical characteristics and cost. We also provide AR-coating and HR-coating for various optical components.
To select the right materials seems overwhelming important. CASIX provides free sevices to select the right optical components for your application.
The materials that CASIX has ever used include:
General optical glass:
Schott glass, Ohara glassMaterials |
Refractive Index |
Transmission Range ( mm) |
Thermal Expansion
Coefficient |
BK7 |
1.5164 (588 nm) |
0.330 - 2.1 |
7.5 |
SF11 |
1.78472(588nm) |
0.370 - 2.5 |
6.8 |
SF14 |
1.76182(588 nm) |
0.420 - 2.0 |
8.1 |
Fused Silica |
1.4858 (308 nm) |
0.185 - 2.5 |
0.54 |
CaF2 |
1.399 (5.0 mm) |
0.170 - 7.8 |
18.85 |
Sapphire |
1.755 (1.0 mm) |
0.180 - 4.5 |
8.4 |
Silicon |
3.4179 (10 mm) |
1.200 - 7.0 |
4.15 |
Ge |
4.003 (10 mm) |
1.900 - 16. |
6.1 |
ZnSe |
2.40 (10 mm) |
0.630 - 18. |
7.8 |
ZnS |
2.2 (10 mm) |
0.380 - 14. |
6.5 |
MgF2 |
no=1.3836 ne=1.3957 (405nm) |
0.130 - 7.0 |
a:13.7 b: 8.48 |
YVO4 |
no=1.9500 ne=2.1554 (1.3 mm) |
0.400 - 5.0 |
a:4.46 b:11.37 |
CaCO3(Calcite) |
no=1.6557 ne=1.4852 (633 nm) |
0.210 - 2.3 |
a:24.39 b:5.68 |
Quartz |
no=1.5427 ne=1.5518 (633 nm) |
0.200 - 2.3 |
7.07 |
a -BBO |
no=1.6749 ne=15555 (532 nm) |
0.190 - 3.5 |
a:4.0 c: 36 |
LiNbO3 |
no=2.2863 ne=2.2027 (633 nm) |
0.370 - 4.5 |
a:16.7 c: 2.0 |
Copyright 1998 CASIX, Inc. All rights reserved.
Last Revised: May 19, 1999
Web Page maintained by : Contact@CASIX.com
 |
 |
 |
 |
 |