YAG Substrate
Yttrium-Aluminum Garnet (YAG) is isotropic crystal with cubic symmetry. It has excellent optical and thermodynamic properties. Its mechanical properties...
YAG Substrate
Yttrium-Aluminum Garnet (YAG) is isotropic crystal with cubic symmetry. It has excellent optical and thermodynamic properties. Its mechanical properties and chemical stability are close to those of sapphire crystals without the birefringence effect of sapphire. Pure YAG crystals have higher transmittance in the 0.25~5 um region, and no absorption at 2-3 μm, while glass has strong H2O absorption band. Therefore, undop...
- ManufacturerOST Photonics
- CategoryCrystal Wafer and Substrate
- Lead TimeQuoted per order
- CustomizationSize, orientation and surface finish to drawing
Yttrium-Aluminum Garnet (YAG) is isotropic crystal with cubic symmetry. It has excellent optical and thermodynamic properties. Its mechanical properties and chemical stability are close to those of sapphire crystals without the birefringence effect of sapphire. Pure YAG crystals have higher transmittance in the 0.25~5 um region, and no absorption at 2-3 μm, while glass has strong H2O absorption band. Therefore, undoped pure YAG crystal is a new type of substrate and window material for ultraviolet and infrared optical equipment. At the same time, the excellent physical and chemical properties and optical properties of YAG crystal make it an important optical application in high-temperature and high-energy physical environments.
OST Photonics offers high quality YAG substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.
Features
- Excellent optical and thermodynamic properties
- Good mechanical properties
- Excellent physical and chemical stability
Applications
- Ultraviolet optical equipment
- Infrared optical equipment
- Optical application
Processing Capability
- Orientation: <100>,<110>,<111>, etc.
- Dimension: 1”, 2”, 5x5mm, 10x5mm, 10x10mm, 20x20mm, etc.
- Thickness: 0.5mm, 1.0mm, etc.
- Available items: wafers, substrates, transparent ceramics, blanks and customized optics
Specification and Properties of YAG Substrates
| Crystal System | Cubic |
| Crystal Lattice Constant | a=12.01 Å |
| Melting Point | 1970 ℃ |
| Density | 4.55 g/cm3 |
| Hardness | 8.5 Mohs |
| Specific Heat | 0.59 J/g•cm-3 (0-20 ℃) |
| Elastic Modulus | 310 GPa |
| Youngs Modulus | 3.17×10^4 kg/mm2 |
| Poisson Ratio | 0.3 |
| Tensile Strength | 0.13-0.26 GPa |
| Thermal Expansion Coefficient | <111>: 7.8×10^-6 /℃ @ 0-250℃<110>: 7.7×10^-6 /℃ @ 0-250℃<100>: 8.2×10^-6 /℃ @ 0-250℃ |
| Thermal Conductivity | 14 W/m/K @ 20 ℃; 10.5 W/m/K @ 100 ℃ |
| Thermo-optic Coefficient | dn/dt = 7.3×10^-6 /℃ |
| Thermal-Shock Resistance | 800 W/m |
| Solubility | Insoluble in water and slightly soluble in acid |
| Refractive Index | 1.82 @ 1064 nm |
| Transmission Range | T>80% @ 250-5000 nm |
| Damage Threshold | >15 Jcm-2 @ 1064 nm |
| Orientation | <100>,<110>,<111>, etc. |
| Orientation Tolerance | ±0.5° or better |
| Dimension | 1”, 2”, 5x5mm, 10x5mm, 10x10mm, 20x20mm, etc. |
| Dimension Tolerance | ±0.1 mm or better |
| Thickness | 0.5mm, 1.0mm, etc. |
| Thickness Tolerance | ±0.05 mm or better |
| Surface Finish | Single side polished (SSP)/Double sides polished (DSP) |
| Surface Roughness | Ra<5Å (5×5μm) |
| Package | Class 100 clean bag, Class 1000 super clean room |
Other Crystal Wafer and Substrate Materials
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