Gallium Gadolinium Garnet (GGG)

Gallium Gadolinium Gallium Gadolinium Gallium Gadolinium
Crystal properties    
Crystal growth method Czochralski  
Crystal growth orientation (100), (111)  
Maximum size 3 inch diameter  
Variations Dopands on request  
Crystallographic properties    
Crystallographic structure Cubic
a = 12.383 Å
a = 12.505 Å SGGG
 
Mineralogical Garnet  
Twinning structure Perfect  
Colour Colourless / Brownish SGGG  
Physical properties    
Density 7.09 g/cm3  
Melting point 1730 °C  
Hardness 7.5 (Mohs)  
Dielectric constant 30  
Dielectric loss tangent (10 GHz) ca. 3.0 * 10_4  
Optical properties    
Transmission range 0.3 to 7.0 mm  
Refraction index: nd = 1.9708 at 577 nm  
ne 1.9567    
nc 1.9577 at 625nm    
ne 1.9567    
nc 1.9500 at 2000nm    
ne 1.9567    
nc 1.9454 at 5000nm    
X-ray properties    
Orientation: (100), (111)    
 Gallium Gadolinium