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GGG
Gadolinium Gallium Garnet is the
best substrate material for infrared optical isolator (1.3 and
1.5um), which is a very important device in optical
communication. GGG is an important substrate for microwave
isolator and other devices as well.
Typical Physical Properties |
Molecular Formula |
Gd3Ga5O12 |
Crystal Structure |
Cubic ： a=12.376Å |
Melt Point |
1800oC |
Density |
7.09 g /cm3 |
Hardness |
6.5Mohs |
Refractive index |
1.95 |
Crystal purity |
>99.99% |
Crystal growth method |
Czochralski |
Standard Size |
Dia.30×0.5mm
20×20×0.5mm
10×10×0.5mm
Special size and orientation are available upon request. |
Orientation |
<100> <110> <111> etc. |
Orientation Accuracy |
±0.3o |
Polishing & Micro Roughness |
Single or double sides polished Ra<5 Å |
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