Yttrium Aluminum Garnet - YAG
Yttrium Aluminum Garnet Y3A15O12 (YAG) optical material that can be used for UV and IR optics. It is useful for optical components in wide spectrum band from 250-5000 nm. YAG shows no trace absorption in the 2 - 3 µm region where glasses tend to be highly absorbent because of the strong H2O band. YAG is commonly used for high-temperature and high-energy applications, in industrial, medical and scientific fields due to high strength and another advantage, like physically hardness, high bulk damage threshold, high index of refraction, excellent thermal conductivity and no absorption in the 2-3 µm range.
Our company grows crystals by the method of Horizontally Directed Crystallization with dimensions up to 250x160x25mm.
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Main properties |
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Transmission Range, µm |
0.21 to 5.3 |
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Refractive Index, at 1.064 µm |
1.82 |
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Reflection Loss, % for two surfaces at 1.064 µm |
16.7% |
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Termooptical factor (dn/dT), at 633 nm |
7.3 x 10-6 x °K-1 |
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Physical Property |
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Density, g/cm3 (20°C) |
4.56 |
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Solubility |
Insoluble in water |
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Type of Material |
single crystal, synthetic |
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Crystal Structure |
cubic |
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Melting Point, at °C |
1940 |
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Thermal conductivity, W x cm-1 x °K-1 |
0.14 |
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Thermal Expansion, 1/°C |
7.8 x 10-6 |
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Specific Heat Capacity, J/(kg · K) at 0 °C |
590 |
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Dielectric Constant |
11.7 |
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Young´s Modulus (E), GPa |
300 |
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Elastic Coefficients |
C11 = 333 |
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Apparent Elastic Limit, MPa |
280 |
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Hardness (Mohs) |
~8,5 |
