Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) is one of the most widely used laser crystals in various optical and industrial applications. This crystal is prized for its efficiency, durability, and the quality of the laser light it can produce.
Properties of Nd:YAG:
- High Efficiency: Nd:YAG lasers are known for their high efficiency when it comes to converting energy into laser light. This is primarily due to the optimal match between the emission and absorption characteristics of neodymium and the YAG host.
- Wavelength: The primary output wavelength of Nd:YAG is 1064 nm, which is in the infrared spectrum. This wavelength is well-suited for a wide range of applications due to its ability to be efficiently converted into other wavelengths using nonlinear optical crystals.
- Thermal Conductivity: Nd:YAG has good thermal conductivity and a low thermal expansion coefficient, making it suitable for high-power applications where heat dissipation is critical.
- Durability: The crystal is robust, with high mechanical strength and chemical resistance, which allows it to operate in harsh environments.
Applications:
- Material Processing: Nd:YAG lasers are extensively used in material processing tasks such as cutting, welding, and marking metals and other materials. Their high power and ability to be focused to small spot sizes make them ideal for these applications.
- Medical Procedures: In medicine, Nd:YAG lasers are used for a variety of procedures, including laser surgery, photocoagulation, and aesthetic treatments such as skin resurfacing and tattoo removal.
- Military and Defense: Nd:YAG lasers are used in various military applications, ranging from range finding and target designation to missile defense systems.
- Scientific Research: In research, these lasers are used in spectroscopy, nonlinear optics experiments, and as pump sources for other types of lasers.
The manufacturing of Nd:YAG crystals involves precise doping of yttrium aluminum garnet with neodymium ions, followed by a rigorous crystal growth process to ensure high optical quality and uniformity. The versatility and performance of Nd:YAG lasers continue to make them a cornerstone in the field of laser technology.
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Shapeoptics is Able to Offer
- Nd dopand concentration from 0.6% to 1.2% (atm%)
- Cr dopand concentration from 0.5% to 3% (mol%)
- Yb dopand concentration from 5% to 15% (atm%)
- Rod diameter from 2mm to 16.5mm
- Length from 1mm to 180mm
- Coating upon your request
Standard Specifications
|
Dopant Concentration Tolerance |
+/- 0.1% |
|
Parallelism / arc seconds |
< 10 |
|
Perpendicularity / arc minutes |
< 5 |
|
Chamfer / mm |
0.1 @45 |
|
Clear Aperture |
95% |
|
Scratch and Dig |
10/5 |
|
Surface Flatness |
/10 @633nm |
|
Wavefront Distortion |
/10 @633nm ( Dia < 7mm) /8 @633nm ( Dia ≥ 7mm) |
|
Damage Threshold / J.cm-2 |
> 15 (TEM00, 10ns, 10Hz) |
Optical Properties
|
Lasing Wavelength / nm |
1064 |
|
Relaxation Time of Terminal Lasing Level / ns |
30 |
|
Radiative Lifetime / s |
550 |
|
Spontaneous Fluorescence / s |
230 |
|
Loss Coefficient / cm-1 |
0.003 @1064nm |
|
Effective Emission Cross Section / cm2 |
2.8 x 10-19 |
|
Pump Wavelength / nm |
807.5 |
|
Absorption Band at Pump Wavelength / mm |
1 |
|
Linewidth / nm |
0.6 |
|
Polarized Emission |
Unpolarized |
|
Thermal Birefringence |
High |
Physical Properties
|
Chemical Formula |
Nd:Y3Al5O12 |
|
Crystal Structure |
Cubic System |
|
Lattice Constants / A |
12.01 |
|
Concentration / cm-3 |
~ 1.2 x 1020 |
|
Density/g.cm-3 |
4.56 |
|
Melting Point / ℃ |
1970 |
|
Mohs Hardness |
8.5 |
|
Refractive Index |
1.82 |
|
Thermal Expansion Coefficient / K-1 |
7.8 x 10-6 // < 111 > |
|
Thermal Conductivity / W.m-1K-1 |
14 @20℃; 10.5 @100℃ |
Neodymium doped Yttrium Aluminum Garnet (Nd:YAG) crystal is the most commonly laser material for CW laser, Pulsed laser, Mode Locked Laser and also widely used in all types of solid-state laser system, frequency- doubled continuous wave, high-energy Q switched, and cavity dumped modes of operation. We can offer Nd, Er, Cr, Tm, Yb, Ho and no doped YAG crystals
Shapeoptics offers a comprehensive range of materials and advanced equipment for custom and OEM optical components, leveraging over 20 years of expertise in manufacturing lenses, prisms, windows, and more. We utilize high-quality materials like UV and IR grade fused silica, Germanium, and ZnSe, among others. Our state-of-the-art techniques and equipment minimize waste and optimize delivery times. Our in-house capabilities include standard and custom coatings across the UV-NIR spectrum, ensuring high quality and compliance with all industry standards. For precision and reliability in optics, contact Shapeoptics for your next project.
