Erbium doped Yttrium Aluminum Garnet
Erbium doped Yttrium Aluminum Garnet (Er3+:Y3Al5O12 or Er:YAG) laser crystal has large advantage in the 2.94 µm wavelength range. Er:YAG has high optical quality, low scattering losses, higher output, stable chemical and mechanical properties and is ideal for hard tissue removal. Er:YAG is a crystal with a wide pump band of 600 - 800 nm. All these properties make Er:YAG crystals excellent for such applications like surgery, dentistry and other medical fields.
Our company grows crystals by the method of Horizontally Directed Crystallization with dimensions up to 250x160x25mm.
|
Main properties |
|
| Chemical formula |
Er: Y3Al5O12 |
|
Crystal structure |
Cubic |
|
Dopant concentration, at. % |
1 - 50% |
|
Lattice constant, A |
12.00 |
|
Density, g/cm3 |
5.35 |
|
Melting Point, ºC |
1970 |
|
Dielectric constant |
11.7 |
|
Mohs hardness |
8.5 |
|
Thermal expansion coefficient |
7.7 x 10-6 x ºK-1, <111> 8.2 x 10-6 x ºK-1, <100> |
|
Thermal conductivity at 25ºC, W x cm-1 x ºK-1 |
0.12 |
|
Loss coefficient at 1064 nm, cm-1 |
0.003 |
|
Laser Wavelength, nm |
2940 |
|
Index of refraction, at 2940 nm |
1.79 |
