| Space Symmetry group |
142d |
| Lattice parameters |
a= 5.9920Å |
|
c = 10.8863Å |
| Melting point |
851 °C |
| Heat capacity |
104 Joule/mole/ºC |
| Density |
5.70g/cm3 |
| Energy gap |
1.83eV |
| Transparency range |
0.78 - 18 |
| Refraction indices at lambda |
| Microns |
no |
ne |
| 1.064 |
2.7010 |
2.6792 |
| 3.0 |
2.6245 |
2.5925 |
| 5.3 |
2.6134 |
2.5808 |
| 10.6 |
2.5912 |
2.5579 |
|
| Absorption coefficient |
@ 1.064µm, cm-1: 0.001 - 0.05 |
|
@ 10.6µm, cm-1: <0.02 |
| Optical damage threshold (surface) |
10.6 micron, 80 ns pulses |
| Power density |
20 - 30 MW/cm2 |
| Non-linear coefficients, 10-12 m/V |
d36 = 58 |
|
(for Type I SHG of 10.6 microns) |
| Phase matching range, microns |
Type I SHG: 3.1 - 12.8 |
|
Type II SHG: 4.7 - 8.1 |
| Birefringence Walkoff at 5.3 microns |
0.67º |
| Flatness |
l/4, at 633nm |
| Scratch/Dig |
20/10 |
| Parallelism |
33 arc sec. |
| Perpendicularity |
30 arc sec |
