Tm: YAG レーザー結晶
仕様
Parameter
| Tm Concentration Tolerance (atm%) | Tm:0.5~5at% |
| Orientation | [111]，<5º |
| Parallelism | ≤10″ |
| Perpendicularity | ≤5′ |
| Surface Quality | 10-5 (MIL-O-13830A) |
| Wavefront Distortion | ≤ 0.125λ/25 mm @632.8nm |
| Surface Flatness | λ/8@632nm |
| Clear Aperture | >95% |
| Chamfer | 0.15±0.05mm |
| Size | D: 2~10mm，L: 3~150mm |
| Coatings | AR: ≤0.25% @2μm |
| Crystal Structure | Cubic |
| Lattice Constants | 12.01 Å |
| Density | 4.56±0.04g/cm3 |
| Melting Point | 1970℃ |
| Thermal Conductivity /W/m/K@20℃ | 14W/m/K@20℃; 10.5W/m/K@100℃ |
| Specific Heat (J/g. cm3@0-20℃) | 0.59 |
| Thermal Optical Coefficient(dn/dT) | 7.3×10-6/K |
| Thermal Expansion | [100]: 8.2×10-6/K@0~250℃ |
| [110]: 7.7×10-6/K@0~250℃ | |
| [111]: 7.8×10-6/K@0~250℃ | |
| Hardness (Mohs) | 8.5 |
| Young`s Modulus | 3.17×104Kg/mm2 |
| Shear Modulus | 310GPa |
| Extinction Ratio | ≥ 25dB @632.8nm |
| Tensile Strength/Gpa | 0.13~0.26 |
| Solubility | Insoluble in water, slightly soluble in ordinary acids |
| Poisson Ratio | 0.25 |
| Thermal Shock Resistance | 790W/m |
| Laser Transition | 3F4→3H6 |
| Laser Wavelength | 1.87~2.16μm |
| Temperature Dependence of Refractive Index | 7.3 10-6/K |
| Absorption Cross Section | 7.5×10-21cm2 |
| Diode Pump Band | 785nm, 680nm |
| Emission Cross Section@2013nm | 2.9×10-20 cm2 |
| Fluorescence Lifetime | 11ms |
| Refractive Index @632nm | 1.83 |
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