Double Sides Polished 4 Inches GGG Crystal Substrate Gadolinium Gallium Garnet
Double Sides Polished 4 Inches GGG Crystal Substrate Gadolinium Gallium Garnet
Gallium Gadolinium Garnet (Gd3Ga5O12) GGG Single Crystal Substrate
Introduction:
GGG, SGGG are used as substrates for liquid epitaxy.GGG substrate is a dedicated substrate for the magneto-optical film. Optical communication devices require a lot of using 1.3μ and 1.5μ optical isolator, its core component is the YIG or BIG film being placed in a magnetic field.
GGG single crystal substrates of different tangential, which can achieve the best lattice match with this magneto-optical material, thus ensuring the YIG, BIG film epitaxial growth be successful. It has good physical and mechanical properties and chemical stability. And SGGG (calcium magnesium zirconium doped gadolinium gallium garnet)is an excellent substrate material for bismuth iron garnet epitaxial films.
Main Advantages :
- Low optical losses (<0.1%/cm)
- High thermal conductivity (7.4W m-1K-1).
- High laser damage threshold (>1GW/cm2)
Material Properties :
| Name | GGG Crystal |
|
Chemical Formula |
Gd3Ga5O12 |
|
Lattice Parameter |
a=12.376Å |
|
Growth Method |
Czochralski |
|
Density |
7.13g/cm3 |
| Hardness | 8.0 Mohs |
| Melting Point | 1725℃ |
| Refractive Index |
1.954 at 1064nm |
Crystro offers :
| Size | MAX Dia 4 inches |
| Thickness | 0.5mm/ 1mm |
| Polishing | Single or Double side |
|
Orientation |
<111>±0.2° |
| Edge Orientation accuracy | 2°(special in 1°) |
| Cutting | Special size and orientation are available upon request |
| Ra | ≤1nm |
| Package |
100 clean bag,1000 exactly clean bag
|
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