| Cr Concentration | 0.85% | Tm Concentration | 5.90% |
| Ho Concentration | 0.36% | Wavefront Distortion (Per inch of rod length) | <I/2 |
| End Face Parallelism | <10 arc seconds | ||
Physical and Optical Properties:
| Crystal Structure | Cubic | Lattice Parameters | 12.01 Å |
| Melting Point | 1970℃ | Moh Hardness | 8.5 |
| Density | 4.56g/cm3 | Specific Heat (0-20) | 0.59J/g.cm3 |
| Modulus of Elasticity | 310GPa | Poisson Ratio | 0.3(est.) |
| Tensile Strength | 0.13~0.26GPa | Thermal Expansion Coefficient | [100]Direction:8.2x10-6 /C°(0~250℃) [110]Direction:7.7x10-6 /C°(0~250℃) [111]Direction:7.8x10-6 /C°(0~250℃) |
| Thermal Conductivity | 14W/m/K(@20℃) 10.5W/m/K(@100℃) |
Thermal Optical Coefficient (dn/dT) | 7.3x10-6 /C° |
| Thermal Shock Resistance | 790W/m | Solubility | Water: Insoluble; Common Acids: Slightly |
| Laser Transition | 5I7 - 5I8 | Laser Wavelength | 2.097μm |
| 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 @2.08μm |
| Absorption Linewidth | 4nm | Diode Pump Band | 781nm |
| Major Pump Bands | 400~800nm | ||
Cr:Tm:Ho:YAG is a kind of excellent laser crystal emitting at 2.1um wavelength. Due to its advantages: high slope efficiency, excellent operation at room temperature and output eye-safe wavelength laser light, CTH:YAG are widely used in medical laser systems, such as surgery, dentistry, therapeutic and others. Hangzhou Shalom EO offers the CTH:YAG rods with coating upon customer's request.
CTH: YAG Advantages
High-efficiency 2 µm source
LD pumping sources can be pump the strong 780nm Tm3+ ion absorption line
Operates in a relatively eye-safe wavelength range
Application Notes:
