Crystals Materials
Nd:YAG Crystals for aerospace, medical, and industrial applications
Nd:YAG Crystal is the most widely used solid state laser crystal. Nd:YAG laser crystal are wildly used in all types of solid-state laser systems-frequency-doubled continuous wave, high-energy Q-switched, and so forth. Its good fluorescent lifetime thermal conductivity and physical strengths makes it suitable for high power lamp pumped laser.
| Material | Nd:Y3Al5O12 |
|---|---|
| Doping | 0.1 ~ 2.5atm% |
| Size | 3 mm ~ 150 mm or Upon customer request |
| Dimension Tolerances | ±0.05 mm |
| Surface Quality | 10/5 S/D |
| Parallelism | < 10 arcsec |
| Perpendicularity | < 5 arcmin |
| Clear Aperture | > 90% |
| Wavefront Distortion | λ/10 @ 633 nm |
| Surface Flatness | < λ/10 @ 632.8 nm |
| Chamfer | < 0.1 mm @ 45° |
| Coating | AR/HR/PR coating upon customer's request |
| Damage Threshold | 750mW/cm2 at 1064 nm, TEM00, 10 ns, 10Hz |
| Chemical Formula | Nd:Y3Al5O12 |
|---|---|
| Crystal Structure | Cubic |
| Lattice Constant | 12.01Å |
| Density | 4.5g/cm3 |
| Melting Point | 1970°C |
| Thermal Conductivity (W/m/k@25°C) | 0.14 W |
| Specific Heat/(J/g/K) | 0.59 |
| Rupture Stress | 1.3-2.6*103 kg/cm2 |
| Hardness (Mohs) | 8.5 |
| Young's Modulus/GPa | 317 |
| Shear Modulus/Gpa | 54.66 |
| Extinction Ratio | 25 dB |
| Poisson Ratio | 0.25 |
| Laser Transition | 4F3/2 →> 4I11/2 |
| Photon Energy | 1.86x10-19J |
| Laser Transition Wavelength, λl | 1064 nm |
| Pump Transition Wavelength, λp | 808 nm |
| Pump Transition Bandwidth, Δλp | < 4 nm |
| Laser Transition Bandwidth, Δλl | ~0.6 nm |
| Pump Transition Peak Cross Section, σp(E-20 cm2) | 6.7 |
| Laser Transition Peak Cross Section, σl(E-20 cm2) | 28 |
| Upper Laser Manifold Lifetime, τ(msec) | 0.26 |
| Quantum Defect Fraction | 0.24 |
| Fractional Heat Generation | 0.37 |
| Refractive Index | 1.8197 @1.064 µm |
| Fluorescence Lifetime | 230 µs |
Stock specification list
If need other specifications and quantities products, please contact us(sales@aogcrystal.com).
Anti-reflection coatings are available at your specified wavelength.
Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
To inquiry or order a finished Nd:YAG laser rod, please specify the specification listed above, for common application, we only need to know the main specification: Nd-dopant concentration, sizes, and coating. For special request,
please specify specification in details for evaluation and fabrication.
| Part Number | Face size | Length | Doping, atm.% | Coating |
|---|---|---|---|---|
| Nd-YAG-0801 | Φ3.0 mm | 60.0 mm | 0.8 | AR/AR@1064 nm |
| Nd-YAG-0801 | Φ9.0 mm | 150.0 mm | 0.8 | AR/AR@1064 nm |
| Nd-YAG-0801 | 3.0*3.0 mm | 2.0 mm | 1.1 | HR@1064 nm + HT@808 nm/AR@1064 nm |
| Nd-YAG-0801 | 3.0*3.0 mm | 5.0 mm | 1.1 | HR@1064 nm + HT@808 nm/AR@1064 nm |
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