| 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. Nd:Ce:YAG laser crystal 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.
