Parameter
Material and Specifications
Concentration Tolerance (atm%) | 0.5 mol % ~ 30 mol % |
Orientation | [111] or [100] < ±0.5° |
Orientation Tolerance | < 0.5° |
Parallelism | 10 |
Perpendicularity | 15 |
Surface Quality | 10-5(MIL-O-13830A) |
Wavefront Distortion | </8 @632 nm |
Surface Flatness | </8 @632 nm |
Clear Aperture | >90% |
Chamfer | <0.1×45° |
Thickness/Diameter Tolerance | ±0.05 mm |
Maximum Dimensions | 2*2-15*15 mm×20mm |
Thermal Shock Resistance Parameter | 800 W/m |
Coatings | AR≤ 0.2% @1030nm |
Crystal Structure | cubic |
Lattice Constants | 5.462 |
Density | 3.18 g/cm3 |
Melting Point | 1418°C |
Thermal Conductivity /(Wm-1K-1@25°C) | 9.71 |
Specific Heat/ (Jg-1K-1) | 0.8876 |
Thermal Optical Coefficient(dn/dT) | 11.3 |
Thermal Expansion /(10-6K-1@25°C ) | 19 |
Hardness (Mohs) | 4 |
Young`s Modulus /GPa | 146 |
Tensile Strength/Gpa | 2 |
Laser Transition | 2F5/22F7/2 |
Laser Wavelength | 1033/1050 |
Optical Density | 0.1-0.8 |
Absorption Coefficient | 1.0 cm-1 ~ 7 cm-1 |
Pump Wavelength | 980 nm |
Emission State Absorption Cross Section | 2.2×10-20 cm2 |
Ground State Absorption Cross Section | 0.8×10-20 cm2 |
Fluorescence Lifetime | 2.4 ms |
Emission Band Width | 70 nm |
Refractive Index @1.064m | 1.2996 |
Thermal Optical Coefficient (106 K1) | -3.7 |
Transmission | 10% to 90% |
Damage Threshold | > 500 MW/cm2 |