|
| |
Tellurium Dioxide (TeO2)
Tellurium Dioxide Crystal is commonly used in acousto-optical devices. This
material features high optical homogeneity, low light absorption and scattering,
and high optical power capability.
Maximum available size: Dia 50 mm x 60 mm long.
Finished components can be supplied with antireflection coating (R , 0.2% for
single wavelength coating, <0.5% for broadband coating for 400-800 nm range).
Main Properties
| Chemical Formula |
TeO2 |
| Molecular Weight |
159.61 |
| Crystal Class |
Tetragonal |
| Density, g/cm3 at 293 K |
6.00 |
| Melting Temperature, K |
1006 |
| Hardness (Mohs) |
4 |
| Solubility in water |
None |
| Color |
Clear |
| Transmittance Range, mm |
0.33-5.0 |
Thermal Expansion at 293K, 1/K
normal to <001>
parallel to <001> |
19.5 x 10-6
6.10 x 10-6 |
| Thermal Conductivity, mW/cm K |
30 |
| Mechanical Impedance, kg/m sec |
3.6 x 106 |
Acoustic Velocities, km/sec
for shear wave along <110>
for longitudinal wave along <001> |
0.617
4.26 |
Acoustic attenuation at 500 MHz, dB/cm
for shear wave along <110>
for longitudinal wave along <001> |
2.3 |
AO Figure of Merit M2, sec3/g
Slow shear mode along <110>
Longitudinal mode along <001> |
1200 x 10-18
34.5 x 10-18
|
Transmission
Refractive Indices at 293K
| l, µ |
0.4765 |
0.4880 |
0.4965 |
0.5017 |
0.5145 |
0.5321 |
0.6328 |
1.0642 |
1.152 |
| no |
2.3394 |
2.3297 |
2.3232 |
2.3194 |
2.3107 |
2.3001 |
2.2585 |
2.2005 |
2.1955 |
| ne |
2.5064 |
2.4951 |
2.4874 |
2.4829 |
2.4727 |
2.4602 |
2.4114 |
2.3431 |
2.3373 |
Elastic Stiffness at 293K, (x
1011 dyne/cm2)
| C11 |
C12 |
C13 |
C33 |
C44 |
C66 |
| 5.32 |
4.86 |
2.12 |
10.85 |
2.44 |
5.52 |
| 5.6 |
5.16 |
2.72 |
10.51 |
2.70 |
6.68 |
Photoelastic Constants for 632.8 nm at 293K
| P11 |
P12 |
P13 |
P31 |
P33 |
P66 |
P44 |
| 0.0074 |
0.187 |
0.340 |
0.090 |
0.240 |
-0.0463 |
-0.044 |
|
