CY0478 Nd:YAG (Neodimium-doped Yttrium Aluminum Garnet)

Catalog No.	CY0478
Surface Quality	10/5 Scratch / Digper MIL-O-1380A
Perpendicularity	< 5 arc minutes

Nd:YAG (Neodymium-doped Yttrium Aluminum Garnet) is the earliest and most famous laser crystal for solid-state laser. Stanford Advanced Materials (SAM) is a trusted supplier and manufacturer of Nd:YAG products.

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CY0478 Nd:YAG (Neodimium-doped Yttrium Aluminum Garnet)

Nd:YAG (Neodimium-doped Yttrium Aluminum Garnet)

Description

Specification

SDS

Nd:YAG Description

Nd:YAG (Neodymium-doped Yttrium Aluminum Garnet) is a solid-state laser material that is widely used in various industrial, medical, and scientific applications. It is a crystal grown from a mixture of Yttrium Aluminum Garnet (YAG) and a small amount of Neodymium (Nd) ions.

The neodymium ions in the crystal are responsible for the laser action. When energy is applied to the crystal in the form of light or electrical current, it excites the neodymium ions. As the excited ions return to their ground state, they emit photons of a specific wavelength, typically in the near-infrared range of 1064 nanometers.

Nd:YAG lasers have several desirable properties that make them popular in various applications. They have high power output, good beam quality, and can operate in the continuous wave (CW) or pulsed mode. They also have a long fluorescence lifetime, efficient energy conversion, and are relatively resistant to thermal shock.

Nd:YAG Specifications

Dopant Concentration	Nd: 0.9%~ 1.1%
Orientation	<111> crystalline direction
Wavefront Distortion	λ/8 per inch @ 633 nm
Extinction Ratio	>28dB
Dimension Tolerances	Rods with diameter: +-0.025 mm , Length: +-0.5 mm
Surface Quality	10/5 Scratch / Digper MIL-O-1380A
Parallelism	< 10 arc seconds
Perpendicularity	< 5 arc minutes
Clear Aperture	>90%
Flatness	<λ/10 @ 633 nm
Chamfer	<0.1 mm @ 45deg.
Barrel Finish	50-80 micro-inch (RMS) ,
Anti-Reflection Coating	R < 0.20% @ 1064 nm per surface. Damage threshold over 1GW/cm2@ 1064nm, 10 ns and 10 HZ.
High-Reflection Coating	Standard HR coating with R>99.8% @ 1064nm and R<5% @ 808nm

Notes:

1. To inquire or order a finished crystal, please provide specifications as listed above. For most applications, we only need to know the following:

1) Nd-dopant concentration; 2) Sizes; 3) Surface quality; 4) Coating.

2. For special requests, please provide a detailed specification for evaluation and fabrication.

Nd:YAG Applications

1. Industrial Cutting and Welding: Nd:YAG lasers are commonly used in materials processing applications like cutting and welding metals, ceramics, and other industrial materials.

2. Laser Marking and Engraving: Nd:YAG lasers can be used for marking or engraving on various surfaces, including metals, plastics, glass, and ceramics.

3. Medical Applications: Nd:YAG lasers find extensive use in the medical field. They are used in cosmetic treatments, such as laser hair removal, tattoo removal, and skin rejuvenation. Additionally, Nd:YAG lasers are used in ophthalmology for procedures like laser eye surgeries, cataract treatment, and glaucoma treatment.

4. Dentistry: Nd:YAG lasers are employed in dentistry for various procedures, including gum contouring, bacterial reduction in periodontal disease, teeth whitening, and biostimulation.

5. Defense and Aerospace: Nd:YAG lasers are utilized in military applications, such as target designation, range finding, and guidance systems. These lasers are also used in the aerospace industry for satellite communications and remote sensing.

6. Research and Development: Nd:YAG lasers are widely used in scientific research, providing a versatile tool for studying various phenomena.

Nd:YAG Package

Nd:YAG (Neodimium-doped Yttrium Aluminum Garnet) are securely packaged in moisture-resistant, anti-static, and shock-absorbing materials. Custom packaging options, such as cleanroom packaging, are also available for sensitive applications.

Nd:YAG FAQs

Q1 What wavelengths are produced by Nd:YAG lasers?

Nd:YAG lasers typically operate at the following wavelengths:

1064 nm: Standard for industrial and medical applications
532 nm (via frequency doubling): Green lasers used in displays and precision work
946 nm, 1320 nm, and 1444 nm: For specific scientific and medical uses

Q2 How are Nd:YAG crystals used in Q-switched lasers?

Nd:YAG crystals are widely used in Q-switched lasers to produce short, high-intensity pulses. This makes them ideal for applications requiring high peak power, such as material ablation and micromachining.

Q3 Can Nd:YAG crystals be coated?

Yes, Nd:YAG crystals can be coated with: