

TeO2 is an excellent ascousto-optic (AO) crystal with high AO figure of merit, birefringence, good optical rotation and slow propagation velocity along [110] direction. The resolution of AO devices made of TeO2 crystals will increase several levels than others. It is an ideal single crystal material for preparation of AO rotators, modulators, resonators, tuning filters and other AO devices.
Material | Type | Diameter | Growth direction | Remarks |
TeO2 Crystal | Optical Grade | 2”/3”/4” | <110> | Other specifications are available on request |
Crystal Structure | Tetragonal |
Point Group | 422 |
Lattice Parameter (nm) | a 0.4810 |
Density | 5.99 g/cm3 |
Melting Point | 730°C |
Mohs Hardness | 4.5 |
Transparency Range (nm) | 350 ~ 500 |
Gradient of Refractive Index | ≤ 5 |
Refractive Index | no = 2.260 |
Transmittivity | 70%@632.8nm |
Phase Velocity (m/s) | 616 |
Photo-elastic Coefficient | P11=0.074 P13=0.340 P31=0.091 P33=0.240 |
Figure of Merit ( 10-18S3)/g | M2 793 |
Send us your dimensions, orientation, surface finish and quantity. Our engineers reply with a technical proposal and price.