| Dopant Concentration | Nd: 0.9-1.3 atm %, Ce : Nd=1:10 |
Orientation | <111> crystalline direction within 5℃ |
| Flatness | <λ/10 | Parallism | ≤10 arc seconds |
| Perpendicularity | ≤5 arc minutes | Surface Quality | 10/5 S/D MIL-O-13830A |
| Optical Quality | Interference fringes ≤ 0. 25 λ /inch Extinction ration ≥ 30dB |
Size | Diameter: 3~8mm, Length: 40~80mm Upon request of customer |
| Dimensional Tolerances | Diameter: +0.000"/-0.05" Length: ±0.5" |
AR-Coating Reflectivity | ≤ 0.2% (@1064nm) |
Physical and Chemical Properties:
| Chemical Formula | Nd3+: Ce3+: Y3Al5O12 | Crystals Structure | Cubic |
| Lattice Parameters | 12.01Å | Melting Point | 1970℃ |
| Moh Hardness | 8.5 | Density | 4.56 ± 0.04g/cm3 |
| Specific Heat(0-20) | 0.59J/g.cm3 | Modulus of Elasticity | 310Gpa |
| Young’s Modulus | 3.17×104Kg/mm2 | Poission Ratio | 0.3(est.) |
| Tensile Strength | 0.13~0.26Gpa | Thermal Expansion Coefficient | [100]:8.2 × 10-6 /℃ [110]:7.7 × 10-6 /℃ [111]:7.8 × 10-6 /℃ |
| Thermal Conductivity | 14W/m/K(@25℃ ) | Thermal Optical Coefficient (dn/dT) | 7.3×10-6 /℃ |
| Thermal Shock Resistance | 790W/m | ||
Laser Properties:
| Laser Transition | 4F3/2 --> 4I11/2 | Laser Wavelength | 1.064μm |
| Photon Energy | 1.86×10-19J@1.064μm | Emission Linewidth | 4.5A @1.064μm |
| Emission Cross Section | 2.7~8.8×10-19cm-2 | Fluorescence Lifetime | 230μs |
| Index of Refraction | 1.8197@1064nm | ||
Nd:Ce:YAG crystal is an excellent laser material used for no-water cooling and miniature laser systems. The (Nd, Ce): YAG laser rod we produce has the characteristics of high efficiency, low threshold, anti-violet radiation and high repetition frequency for lasers operation. It has achieved the international advanced level. It is the most ideal laser material for the high repetition air cooling lasers. It suitable for different modes of operation (cw, pulsed , Q-switched, mode locked, doubling of frequency ) and high-average power lasers.
