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