Product Code : CO-Nd:YAG-5N-CU
Nd:YAG, the earlist and most famous laser host crystal with advantageous properties, Since it combines great advantages in many basic properties, Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier. Nd:YAG(Neodymium–doped yttrium aluminum garnet, Nd:Y3Al5O12) one of the mature developed laser crystals materials which is obtained by doping Nd ion into YAG crystal.
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Product Information
Nd:YAG, the earlist and most famous laser host crystal with advantageous properties, Since it combines great advantages in many basic properties, Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier. Nd:YAG(Neodymium–doped yttrium aluminum garnet, Nd:Y3Al5O12) one of the mature developed laser crystals materials which is obtained by doping Nd ion into YAG crystal.
Although Nd:YAG crystal was invented at Bell Laboratories in 1964, it has been and is still the most commonly used solid-state crystal material. Nd:YAG crystal are wildly used in all types of solid state lasers systems: frequency doubled continuous wave, high energy Q-switch, and so forth. Compared with others laser crystals, its fluorescence lifetime is twice more than Nd:YVO4 crystal, and thermal conductivity is also better. AOG Crystal supplies quality Nd:YAG rods with high optical homogeneity, consistent performance, and high processing accuracy. Nd:YAG lasers are optically pumped using a flashtube or laser diodes, and Nd:YAG laser crystal absorbs mostly in the bands between 730–760 nm and 790–820 nm. At low current densities krypton flashlamps have higher output in those bands than do the more common xenon lamps, which produce more light at around 900 nm. The former are therefore more efficient for pumping Nd:YAG lasers. Nd:YAG crystal is widely used in industrial, medical, military and scientific fields.
Synonyms
Nd:YAG; Neodymium-doped YAG; Neodymium-YAG; neodymium-yttrium-aluminum garnet; neodymium:yttrium aluminum garnet; Nd-doped Yttrium Aluminum Oxide; Nd:Y3Al5O3; Y2.97Nd0.03AI5O12; Y2.985Nd0.015Al5O12
Nd:YAG Crystal Specification
Size：customized
| Dopant Concentration | Nd: 0.1~2.5 (± 0.1) atm% |
| Dimension | size up to dia. 15 × 180 mm and maximum diameter of dia. 40 mm × 2 mm |
| Dimensional Tolerances | Diameter: ± 0.1mm |
| Length: ± 0.5 mm | |
| Surface Quality (Scratch/Dig) | 10/5 to MIL-PRF-13830B |
| Wavefront Distortion | λ/4@632 nm |
| Flatness | λ/8 @633 nm |
| Parallelism | 20 arc sec |
| Perpendicularity | ≦ 15 arc min |
| Chamfer | ≦ 0.2 mm×45° |
| HR Coating | R ＞ 99.8% @1064 nm, R < 5% @808 nm |
| Other HR Coatings, such as HR-1064/532 nm, HR-946 nm, HR-1319 nm and other wavelengths are available. | |
| Damage Threshold | ＞500 MW/cm2 @1064 nm, 10 ns, 10 Hz (AR-coated) |
| Orientation | [001] or [110] or [111] <±0.5° |
| Clear Aperture | >95 % |
| Thickness/Diameter Tolerance | ±0.05 mm |
| Maximum Dimensions | dia (3~12.7)×(3~150) mm |
| Chips | <0.1 mm |
| Extinction Ratio | >30 dB(depends on actual sizes ) |
| Barrel Finish | 400 grit |
Properties（Theoretical）
| Compound Formula | Nd:Y3Al5O12 |
| Molecular Weight | 593.7 |
| Appearance | Violet crystalline solid |
| Melting Point | 1960 °C |
| Density | 4.55 g/cm3 (YAG) |
| Refractive Index | n20/D 1.83 (@ 632.8 nm) |
| Crystal Phase / Structure | Cubic |
| Poisson's Ratio | 0.25 |
| Specific Heat | 0.59 J/g·K |
| Tensile Strength | 200 MPa |
| Thermal Conductivity | 10-14 W/m·K |
| Thermal Conductivity | 14 W/cm/K, 20℃ |
| 10.5 W/cm/K, 100℃ | |
| Thermal Expansion | 6.9 x 10-6/ °C |
| Young's Modulus | 280-335 GPa |
| Rupture Stress | 1.3-2.6*103 kg/cm2 |
| Thermal Expansion /（10-6·K-1@25°C ） | [100] Orientation–8.2 |
| [110] Orientation–7.7 | |
| [111] Orientation–7.8 | |
| Hardness (Mohs) | 8.5 |
| Shear Modulus/Gpa | 54.66 |
| Extinction Ratio | 25 dB |
| Poisson Ratio | 0.25 |
| Lattice Parameter | 12.01 Å |
| Stimulated Emission Cross-section | 2.8 × 10-19 cm-2 |
| Relaxation Time of Terminal Lasing Level | 30 ns |
| Fluorescent Lifetime | 550 µs |
| Spontaneous Fluorescence | 230 µs |
| Linewidth | 0.6 nm |
| Loss Coefficient | 0.003 cm-1 @1064 nm |
Optical and spectral properties of Nd:YAG crystal
| Laser Transition | Photon Energy | Laser Transition Wavelength, λl (nm) | Pump Transition Wavelength, λp (nm) | Pump Transition Bandwidth, Δλp (nm) | Laser Transition Bandwidth, Δλl (nm) | Pump Transition Peak Cross Section, σp (E-20 cm2) | Laser Transition Peak Cross Section, σl (E-20 cm2) | Pump Transition Saturation Intensity, φp (kW/cm2) | Laser Transition Saturation Intensity, φl (kW/cm2) | Laser Transition Saturation Fluence, Γl,sat (J/cm2) | Minimum Pump Intensity, Imin (kW/cm2) | Upper Laser Manifold Lifetime, τ(msec) | Quantum Defect Fraction | Fractional Heat Generation | Refractive Index | Fluorescence Lifetime |
| 4F3/2 →> 4I11/2 | 1.86×10-19 J | 1064 | 808 | <4 | ~0.6 | 6.7 | 28 | 12 | 2.6 | 0.6 | ~0 | 0.26 | 0.24 | 0.37 | 1.8197 @1.064 µm | 230 µs |
| Diameter (mm) | Standard grade | Excellent grade | Super-excellent grade |
| Φ3-6.35 | ≦ 0.5 fringes/inch | ≦ 0.25 fringes/inch | ≦ 0.1 fringes/inch |
| ≧ 25 dB | ≧ 28 dB | ≧ 30 dB | |
| Φ7-10 | ≦ 0.7 fringes/inch | ≦ 0.4 fringes/inch | ≦ 0.16 fringes/inch |
| ≧ 22 dB | ≧ 25 dB | ≧ 28 dB | |
| Φ11-13 | ≦ 1 fringes/inch | ≦ 0.6 fringes/inch | ≦ 0.2 fringes/inch |
| ≧ 20 dB | ≧ 23 dB | ≧ 26 dB | |
| Φ14-16 | ≦ 1.2 fringes/inch | ≦ 0.8 fringes/inch | ≦ 0.25 fringes/inch |
| ≧ 18 dB | ≧ 20 dB | ≧ 23 dB |
ATT's Nd:YAG is featured by
Excellent mechanical and physical properties High slope efficiency Absorption Bandwidth
High gain
Low threshold
High optical quality
High efficiency
Low loss at 1064nm
Good thermal conductivity and thermal shock characteristics
Mechanical strength
Material characteristics that allow for various modes of operation (CW, pulsed, Q-switched, mode locked)
Applications of Nd:YAG crystal
Laser rangefinde
Laser beauty equipment
laser marker
Laser medicine
Holography
Manufacturing:Nd:YAG lasers are used in manufacturing for engraving, etching, or marking a variety of metals and plastics, or for metal surface enhancement processes like laser peening. They are extensively used in manufacturing for cutting and welding steel, semiconductors and various alloys. For example, 266 nm lasers, 355 nm lasers, 532 nm lasers, 1064 nm lasers.
Optical communication
Radar and ranging
Medical Applications: Nd:YAG lasers emitting light at 1064 nm have been the most widely used laser for laser-induced thermotherapy, in which benign or malignant lesions in various organs are ablated by the beam. In oncology, Nd:YAG lasers can be used to remove skin cancers. These lasers are also used extensively in the field of cosmetic medicine for laser hair removal and the treatment of minor vascular defects such as spider veins on the face and legs. In podiatry, the Nd:YAG laser is being used to treat onychomycosis, which is fungus infection of the toenail.
Packing of Nd:YAG crystal
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’ Nd:YAG crystal is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition
Chemical Identifiers
| Linear Formula | Nd:Y3Al5O12 |
