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GGG substrate

GGG substrate

 

The main performance parameters

Product Name
Gadolinium gallium garnet (GGG) single crystal substrate/wafer
Crystal structure
Cubic
Growth method
Czochralski method
Lattice constant
a=12.376Å,(Z=8) 
Melting point(℃)
1800
Purity
99.99%
Density
7.09
Hardness
6-7(mohs)
Refractive index
1.95
Special specification
We can customize specific specification upon requirements
Packing
100 clean bag,1000 exactly clean bag

 

Standard Specification
Product Name Orientation Standard Size Thickness Polishing  
GGG substrate <100> ±0.5°
<110> ±0.5°
<111> ±0.5°
Or other off-angle
10x10mm
10x5mm
5x5mm
15x15mm
φ2" x 0.5mm
φ3" x 0.5mm
Or others
0.1mm
0.2mm
0.5mm
1.0mm
2.0mm
Or others
Fine ground
Single side polished
Double side polished

Roughness: Ra<5A(0.5nm)
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GGG substrate, Gadolinium gallium garnet (GGG) is dedicated substrates for magneto-optical film. In the optical communication devices, require a lot of using 1.3μ and 1.5μ optical isolator, Its core component is the YIG or BIG film been placed in a magnetic field. GGG single crystal substrates of different tangential, which can achieve the best lattice match with these magneto-optical material, Thus ensuring the YIG, BIG film epitaxial growth be successful.
GGG have good physical and mechanical properties and chemical stability. GGG is the best substrate material for made the microwave isolators .

 
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