CTH: YAG Crystals
CTH: YAG crystal is Cr, TM, Ho: YAG crystal. The laser emission wavelength is 2080 nm. CTH: YAG crystal is a 2-micron laser crystal with high pumping efficiency and can be pumped by a flash lamp or laser diode. Cr, TM, Ho: YAG crystal is widely used in laser medical, measurement, and military fields. In addition, this CTH: YAG crystal has better optical quality, lower scattering loss, and higher efficiency. Lasers made of Cr, TM, Ho: YAG crystals have been widely used in the field of laser medicine. WDQ OPTICS offers the CTH: YAG rods with coating upon the customer's request.
Feature of CTH:YAG Crystals:
-Eye-safe wavelength of 2.1 μm
-High slope efficiency
-Excellent operation at room temperature
-Pumping source options: flash lamp or laser diode
-Used in medical laser systems
Application for CTH:YAG Crystals
Surgery
Dentistry
Atmospheric Testing
Specifications of CTH:YAG Crystals:
| Cr Concentration |
0.85% |
Tm Concentration |
5.90% |
| Ho Concentration |
0.36% |
Wavefront Distortion (Per inch of rod length) |
|
| 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 |
If you are interested in CTH:YAG Crystals, welcome to contact us.