Materials
Material:
Sinoceramics has the capability to fabricate optical components with various optical materials. Some of the most important material properties to consider for optical elements are:
- Transmission versus wavelength
- Index of refraction
- Thermal characteristics
- Mechanical and chemical characteristics
- Cost
There are two instances in which you might need to know more about optical materials. First, you may need to determine the performance of a catalog component in a particular application. Second, you may need specific information when selecting the material for a custom component. The data below is intended to assist in these situations. It is very important to select the best material for your optical component(s).
General Optical Glass: Crown Glass, Fire Glass, SF Glass…
Special Glass: Fused Silica, UV Fused Silica, Color Glass, Float Glass…
Laser Product: Nd:YVO4, Nd:YAG, Ti:Sapphire, Cr:YAG, KTP, KDP, KD*P…
Optical Crystal: Sapphire, CaF2, BaF2, MgF2, MgO, Silicon, Ge, ZnSe, ZnS, YAG…
Birefringence Material: YVO4, LiNbO3, Quartz, Calcite, a-BBO, TeO2…
no = ordinary
ne = extraordinary
|
Material |
Refractive Index |
Transmission |
Thermal Expansion Coefficient (10 -6 /k) |
||
|
BK7 |
1.5164 (588nm) |
0.33 – 2.1 |
7.5 |
||
|
Fused Silica |
1.4858 (308nm) |
0.185 – 2.5 |
0.54 |
||
|
CaF2 |
1.399 (5.0µm) |
0.17 – 7.8 |
18.85 |
||
|
Sapphire |
1.755 (1.0µm) |
0.18 – 4.5 |
8.4 |
||
|
Quartz |
no = 1.5427 |
ne = 1.5518 (633nm) |
0.20 – 2.3 |
7.07 |
|
|
YVO4 |
no = 1.9500 |
ne = 2.1554 (1.3nm) |
0.40 – 5.0 |
a: 4.46 |
b: 11.37 |
|
Calcite |
no = 1.9500 |
ne = 2.1554 (1.3nm) |
0.21 – 2.3 |
a: 24.39 |
b: 5.68 |
|
LiNbO3 |
no = 2.2863 |
ne = 2.2027 (633nm) |
0.37 – 4.5 |
a: 16.7 |
c: 2.0 |
|
a-BBO |
no = 1.6749 |
ne = 1.5555 (532nm) |
0.19 – 3.5 |
a: 4.0 |
c: 36 |
|
TeO2 |
no = 2.261 |
ne = 2.142 (6332nm) |
0.35 – 5.0 |
|
|
|
SF11 |
1.78472 (588nm) |
0.37 – 2.5 |
6.8 |
||
|
SF14 |
1.76182 (588nm) |
0.42 – 2.0 |
8.1 |
||
|
Silicon |
3.4179 (10µm) |
1.20 – 7.0 |
4.15 |
||
|
Ge |
4.003 (10µm) |
1.90 – 16 |
6.1 |
||
|
ZnSe |
2.10 (10µm) |
0.63 – 18 |
7.8 |
||
|
ZnS |
2.2 (10µm) |
0.38 – 14 |
6.5 |
||
|
LiF |
1.39 (500nm) |
0.15 – 5.2 |
37 |
||
|
KBr |
1.526 (10µm) |
0.28 – 22 |
43 |
||
|
MgF2 |
no = 1.3836 |
ne = 1.3957 (405nm) |
0.13 – 7.0 |
a: 13.7 |
b: 8.48 |
|
YAG |
1.8197 (1.0µm) |
0.25 – 5.0 |
6.9 |
||
|
TiO2 |
no = 2.261 |
ne = 2.142 (633nm) |
0.35 – 5.0 |
|
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