Tb3Ga5O12(TGG)
TGG single crystal has high magneto-optical constant (Verdet constant), low optical absorption coefficient, good thermal conductivity and high laser damage threshold, which is an ideal material for the magneto-optical isolator.
| Main performance parameters | ||
| Molecular formula | Tb3Ga5O12 | |
| Lattice constant | a=12.355 Å | |
| Growth method | Czochralski method | |
| Melting point（℃） | 1725 | |
| Density（g/cm3） | 7.13 | |
| Mohs hardness | 8（mohs） | |
| Refractivity | 1.954 @1064nm | |
| Verdet constant | 0.12min/Oe.cm at1064nm | |
| Standard specifications and dimensions | ||
| Orientation | <111> within 0.5 degrees | |
| Wavefront distortion | <1/8 wave total （与633nm测量） | |
| Extinction ratio | >30dB | |
| Dimension | Diameter | +0.00mm/-0.05mm |
| Length | ±0.2mm | |
| Chamfer | 0.13mm（+0.00mm，-0.08mm） at45°±5° | |
| Processing parameters | ||
| Flatness | <1/10 wave at 633nm | |
| Parallelism | <1 minutes of arc | |
| Verticality | <1 degree | |
| S/D | 20/10 | |
| Packing | Class 100 clean bag, Class 1000 clean room | |
