2 Inch Gadolinium Gallium Garnet GGG , Crystal Substrate Material Gd3Ga5O12
Magnesium oxide(100)＆(110)Orientation MgO Single Crystal substrates by size 10x10x0.5mmt or 2inch x0.5mmt /2'' inch Gadolinium gallium garnet GGG (Gd3Ga5O12) crystal substrate
Crystal Substrates Gallium Gadolinium Garnet Gd3Ga5O12 GGG single crystal
Gallium Gadolinium Garnet (Gd3Ga5O12 or GGG) single crystal is material with good optical, mechanical and thermal properties which make it promising for use in fabrication of various optical components as well as substrate material for magneto – optical films and high – temperature superconductors.It is the best substrate material for infrared optical isolator (1.3 and 1.5um), which is a very important device in optical communication. It is made of YIG or BIG film on the GGG substrate plus birefringence parts. Also GGG is an important substrate for microwave isolator and other devices. Its physical, mechanical and chemical properties are all good for the above applications.
Feature Crystal Substrates GGG crystal
| good optical, mechanical and thermal properties |
| best substrate for infrared optical isolator |
| good substrate for microwave isolator |
Crystal Substrates GGG crystal
| Chemical formula | Gd3Ga5O12 |
| Crystal structure | cubic |
| Lattice parameters, Å | a = 12.383 Å |
| Molecular Weight | 1012.5 |
| Density, g/cm3 | 7.08 g/cm3 |
| Transmission Range | 0.40 ~ 7.0 µm |
| Refractive index | 1.97 @480nm, |
| Melting Point | 1730°C |
| Thermal conductivity at 25°C, W x cm-1 x °K-1 | 7.05 |
| Thermal expansion coefficient | 8.2×10-6 /K |
| Dielectric Constant | 30 |
| Dielectric loss tangent, at 10 GHz | 0.15 |
| Colour |
Colorless |
| Product Type: | Gadolinium gallium garnet (Gd3Ga5O12) crystal substrate | ||||||||||||||||
| Product Description: | Gadolinium gallium garnet (GGG) is used for a magneto-optical film (YIG thin film or BIG) a special substrate in the optical communication apparatus, YIG or BIG films are 1.3 and 1.5 of the optical isolator core components of different crystal orientation GGG single-crystal substrate may have the best film with such lattice matching and GGG have good physical, mechanical properties and chemical stability, so as to ensure the success of the epitaxial growth film. GGG while also making the best microwave isolator substrate material. | ||||||||||||||||
| Technical parameters: |
Basic Properties
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| Specifications: |
Standard Specification GGG substrate Maximum crystal size: Ø 30 x 100 mm Standard chip size: direction <111> ± 0.5 o; Ø 30X 0.5 mm, 10 x 10 x 0.5 mm epitaxial single throw or double throw Ra <5 Å Note: You can provide special sizes according to customer needs and the direction of the substrate. |
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| Standard Packaging: | 1000 clean room, clean bags 10 |
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