Name: | Cr, Tm, Ho: YAG | Doped Concentration: | Ho:0.3~0.4at% Cr:0.3~1.2at% Tm:5~6at% |
---|---|---|---|
Wavefront Distortion: | </4@632nm | Extinction Ratio: | ≥25 DB |
Rod Sizes: | Diameter:3~6mm,Length:50~120mm | Dimensional Tolerances: | Diameter:+0.00/-0.05mm, Length0.5mm |
High Light: | nd yag laser rod,titanium doped sapphire |
Parameter
Doped Concentration | Ho:0.3~0.4at% Cr:0.3~1.2at% Tm:5~6at% |
Wavefront Distortion | </4@632nm |
Extinction Ratio | ≥25 dB |
Rod Sizes | Diameter:3~6mm,Length:50~120mm |
Dimensional Tolerances | Diameter:+0.00/-0.05mm, Length0.5mm |
Barrel Finish | 50-80 micro-inch (RMS) |
Parallelism | ≤30 |
Perpendicularity | ≤5′ |
Flatness | /10@ 633 nm |
Surface Quality | 10/5 Scratch / Digper MIL-O-1380A |
Chamfer | 0.006±0.002 at 455° |
AR Coating Reflectivity | ≤ 0.25% (@2094nm) |
Physical and Chemical Properties
Structure | Cubic |
Lattice Constant | 12.01 |
Melting Point | 1970°C |
Density | 4.56g/cm3 |
Orientation | <111> or <100]> crystalline within 5° |
Thermal Expansion | 7.8×10-6 /K |
Thermal Conductivity | 14W/m/K, 20°C10.5W/m/K, 100°C |
Mohs Hardness | 8.5 |
Dielectric Constant | 11.7 |
Optical and Spectral Properties
Laser Transition | 5I75I8 |
Laser Wavelength | 2.094 m |
Photon Energy | 9.55 x 10-20 J |
Emission Cross Section | 7 x 10-21 cm2 |
Fluorescence Lifetime | 8.5 ms |
Index of Refraction | 1.80 @2.08 m |
Aperture | >90% |
Absorption Linewidth | 4 nm |
Diode Pump Band | 781 nm |
Major Pump Band | 400~800 nm |
Medical Applications