Crystal symmetry:
Density: 2,2 g/cm^3
Optical spectral range: 0.2 - 4.5 mkm
Elastic constants
: 10^11 dyn/cm^2 or 10^10 Pa)
| -- | -- | -- | -- | -- | -- |
| -- | -- | -- | -- | -- | -- |
| -- | -- | -- | -- | -- | -- |
| -- | -- | -- | -- | -- | -- |
| -- | -- | -- | -- | -- | -- |
| -- | -- | -- | -- | -- | -- |
Photolastic constants
:
| 0.121 | 0.27 | 0.27 | 0 | 0 | 0 |
| 0.27 | 0.121 | 0.27 | 0 | 0 | 0 |
| 0.27 | 0.27 | 0.121 | 0 | 0 | 0 |
| 0 | 0 | 0 | -0.075 | 0 | 0 |
| 0 | 0 | 0 | 0 | -0.075 | 0 |
| 0 | 0 | 0 | 0 | 0 | -0.075 |
Refraction indices:
The values for refraction coefficients for the given optical wavelengths.
| wavelength, mkm | refraction index |
| 0.2 | 1.5505 |
| 0.25 | 1.5074 |
| 0.3 | 1.4878 |
| 0.4 | 1.4701 |
| 0.45 | 1.4656 |
| 0.5 | 1.4623 |
| 0.55 | 1.4601 |
| 0.6 | 1.4580 |
| 0.65 | 1.4565 |
| 0.7 | 1.4552 |
| 0.8 | 1.4533 |
| 0.9 | 1.4517 |
| 1 | 1.4504 |
| 1.1 | 1.4492 |
| 1.2 | 1.4480 |
| 1.5 | 1.4446 |
| 2 | 1.4381 |
| 3.4 | 1.4089 |
Sound velocity:
| direction | polarization | v (10^5 cm/s) |
| -- | L | 5.96 |
Acousto-optic figure of merit:
| sound dir. | sound pol. | light dir. | light pol. | M (10^-18 s^3/g) |
| -- | L | arb. | orthog. | 1.56 |
| -- | L | arb. | orthog. | 1.56 |