YAG substrate
|
The main performance parameters |
|
|
Crystal structure |
Cubic |
|
Lattice Constant |
12.02 A |
|
Melting point |
1970 ℃ |
|
Mohs hardness |
8.5 |
|
Density |
4.55 + 0.04g/cm3 |
|
Specific heat |
0.59J/g cm? -3 @0-20 ℃ |
|
Modulus of elasticity |
310 GPa |
|
Young's modulus |
3.17x10 4 Kg/mm2 |
|
Poisson ratio |
0.3 |
|
Tensile strength |
0.13-0.26GPa |
|
Thermal expansion coefficient |
[111]: 7.8x10 -6 /℃ @0-250℃ [110] : 7.7x10 -6 / ℃ @0-250℃ [100]: 8.2x10 -6 / ℃ @0-250℃ |
|
Thermal conductivity |
14W/m/K@20 ℃ 10.5W/m/K@100 ℃ |
|
Calorescence coefficient |
Dn/dt = 7.3x10-6 /℃ |
|
Thermal shock |
800W/m |
|
Refractive index |
1.8197@1064mm |
|
Transmittance range |
250-5000nm |
|
Anti-optical-damage threshold |
≥ 15Jcm -2 @1064nm |
|
Standard Orientation |
<111> and <100> |
| Standard Specification | |||||
| Product Name | Orientation | Standard Size | Thickness | Polishing | |
| YAG substrate |
<100> ±0.5° <110> ±0.5° <111> ±0.5° Or other off-angle |
10x10mm 10x5mm 5x5mm 20x20mm φ1" x 1.0mm φ2" x 1.0mm Or others |
0.1mm 0.2mm 0.5mm 1.0mm 2.0mm Or others |
Fine ground Single side polished Double side polished Roughness: Ra<5A(0.5nm) |
Inquiry Online |
Yttrium aluminum garnet (YAG) is a cubic crystal system crystal, It has excellent optical, thermal properties. Its mechanical properties and chemical stability are close to the sapphire(Al2O3) crystal, and doesn't have the sapphire's birefringence; The pure YAG crystal has a high transmittance in the 0.25~5 um region, and has no absorption at 2-3 um, while the glass has a strong H2O absorption zone in this area. Therefore, undoped pure YAG crystal is a new type of substrate and window material for UV and infrared optical equipment, and the excellent physical and optical properties of YAG crystal make it an important application in high temperature and high energy physical environments.
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