YAG Crystal (Undoped Yttrium Aluminum Garnet)
YAG Crystal
Undoped Yttrium Aluminum Garnet (YAG) is a new type of substrates and window materials that can be used as ultraviolet and infrared optics, and widely used in high temperature and high energy density application. The undpoed YAG crystal has no absorption in the 23μm region. The crystal has the characteristics of good optical uniformity, high transmittance, excellent mechanical properties, stable physical and chemical properties, and good dynamic properties. Through the doping of rare earth ions, YAG crystals have a wide range of applications in composite laser crystal materials.
Physical Properties of YAG Crystal
| Material | Undoped YAG | |||
| Crystal Structure | M3 | |||
| Dielectric constants | 12.01 A | |||
| Density(g/cm3) | 4.56±0.04 g/cm3 | |||
| Melting point | 1970℃ | |||
| Hardness | 8~8.5 (Mohns) | |||
| Coefficient of Thermal Expansion (w/mk) | 7.8 | |||
| Thermal Conductivity (W/mk) | 13.1 (20℃) | |||
| dn/dT Thermal Coefficient of Refractive Index (10-6/k) | 7.3 | |||
| Transmission range (nm) | 250~5000 | |||
| Orientation | <111> within±5° | |||
| Size |
Rods: Diameter（3-50）mm, Length≤150mm, Customized according to customer requirements |
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| Interference Fringe | ≤1/8λ/[email protected] | |||
| Extinction Ratio | ≥28db | |||
| Dimensional Tolerance | Diameter: 0/-0.05mm,Length: +/-0.5mm | |||
| Ends parallel Parallelism | ≤ 20" | |||
| Surface Quality | 10-5 (MIL-O-13830A) | |||
| Chamfer | 0.1±0.05mm*45° | |||
Related Products of YAG Crystal
|
Semiconductor Crystals |
Scintillation Crystals |
Photoelectric Crystals |
|
Infrared Crystals |
Laser Crystals |
Nonlinear Optical Crystals |
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