Nd:YAG
Nd:YAG(Neodymium-doped Yttrium Aluminum Garnet)
Nd:YAG(Neodymium-doped yttrium aluminum garnet) laser crystal has many excellent basic properties like good optical homogeneity and mechanical property, high chemical stability and good thermal conductivity. It’s widely used in industry, medical, military, and scientific research field. For applications requiring high power and energy, Q-switched and mode-locked ultrashort pulse lasers, it’s mostly used material.
Specifications
| Dopant Concentration | Nd: 0.3~1.2 atm% |
| Dimension | D≤80*L≤200 |
| Dimensional Tolerances | Diameter: ± 0.1mm |
| Length: ± 0.2mm | |
| Surface Quality (Scratch/Dig) | 10/5 |
| Wavefront Distortion | λ/8 @633 nm |
| Flatness | λ/10 @633 nm |
| Parallelism | 10 arc sec |
| Perpendicularity | ≦ 5 arc min |
| HR Coating | R ＞ 99.8% @1064 nm, R < 5% @808 nm |
| AR Coating | ≤ 0.25% (@1064nm) |
| Damage Threshold | >500 MW/cm2 @1064 nm, 10 ns, 10 Hz (AR-coated) |
*The parameters just for general reference. For specific requirements, please contact our sales.
Basic Properties
| Formula | Y3Al5O12 |
| Crystal Structure | Cubic |
| Lattice Parameter | 12.01 Å |
| Density | 4.5 g/cm3 |
| Melting Point | 1970℃ |
| Reflective Index | 1.82 |
| Mohs Hardness | 8.5 Mohs |
| Thermal Expansion Coefficient | 7.8 × 10-6 /K <111＞, 0 – 250℃ |
| Thermal Conductivity | 14 W/m/K, 20℃ |
| 10.5 W/m/K, 100℃ | |
| Stimulated Emission Cross-section | 2.8 × 10-19 cm-2 |
| Linewidth | 0.6 nm |
| Loss Coefficient | 0.003 cm-1 @1064 nm |
