| Basic materials characteristics |
|
| Crystal symmetry |
Trigonal, 3m |
| Lattice constant, A |
a = 5.154 c = 13.783 |
| Density, g/cm3 |
7.45 |
| Melting point , °C |
1650 |
| Curie point , °C |
610 |
| Mohs hardness |
6 |
| Color |
Colorless or light yellow |
| Thermal expansion coefficient, 10-6/ °C |
aa = 16 ac = 4 |
| Thermal conductivity , mW/cm °C |
46 |
| Dielectric Constant (@ 100 KHz) |
ea = 54 ec = 43 |
| Transparency range, nm |
400 - 5500 |
| Refractive indices @ 633 nm |
no = 2.175 ne = 2.180 |
| Electro-optic coefficients pm/V @633 nm, high frequency |
r33 = 33/r13 = 8/r22 = 20 |
| Nonlinear optical coefficients p/m/V @ 1064 nm |
d22 = 2.0/d31 = - 1/d33 = -21 |
| Pyroelectric Coefficient: |
-2.3 10-4 C/°C/m2 |
| Optical homogeneity |
~10-5 |
| Absorption loss @ 1064 nm |
< 0.15 %/cm |
