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Neodymium-doped Yttrium Aluminum Garnet Nd-doped YAG substrate

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Neodymium-doped Yttrium Aluminum Garnet Nd-doped YAG substrate

The Neodymium-doped Yttrium Aluminum Garnet(Nd:YAG) is an laser crystal with the best comprehensive performance and the most important application,it widely used in industrial, medical, military and scientific research. Nd:YAG is often used in near/far infrared solid-state lasers and its multipliers, triple frequency lasers, It can also be used in diode-pumped all-solid-state micro-miniature lasers, and obtain high quality continuous laser output of red, green and blue. It is more efficient and easier to implement than Nd:YVO4;

Such asvarious specifications of rangefinders, optoelectronic countermeasure equipment systems, High-performance laser equipment, laser treatment equipment, cosmetic instrument, laser marking and laser drilling machine, etc.

Also, in situations where require high power, high energy, Q-switching, and mode-locked ultrashort pulse lasers, Nd:YAG is the preferred laser working substance.

Advantages of Nd:YAG crystals:

- High gain, low threshold, high efficiency

- High optical quality, low loss

- High mechanical strength, excellent thermal conductivity and thermal shock resistance

- Suitable for various laser working modes (continuous, pulse, Q-switch, mode-locked, multiplier, etc.)

- Suitable for high average power solid state lasers

Physical and Chemical properties

Crystal structure	Cubic
Lattice constant	12.01A
Melting point	1970 ℃
Mohs hardness	8.5
Density	4.56 + 0.04g/cm³
Specific heat	0.59J/g.cm³ @0-20 ℃
Modulus of elasticity	310GPa
Young's modulus	3.17 x 10⁴ Kg/mm²
Poisson ratio	0.3
Tensile strength	0.13~0.26GPa
Thermal expansion coefficient	[100] direction: 8.2 * 10^-6 /K @ 0~250 ℃
	[110] direction: 7.7 * 10^-6 /K @0~250 ℃
	[111] direction: 7.8 * 10^-6 /K @0~250 ℃
Thermal conductivity	14W/m/K@20 ℃
Thermal conductivity	10.5W/m/K@100 ℃
The thermo optic coefficient (dn/dT)	7.3 x 10^-6 /K
Thermal shock	790W/m
Refractive index	n = 1.8197 @1.064μm
Effective aperture	>95%
Standard Orientation	[001], [110] or [111] <±0.5°
Standard size	Diameter(3〜12.7) × Length (3〜150)mm
Surface Finish	Less than 10/ 5
Other	Flatness: λ/10, parallelism ≤ 10", perpendicularity ≤ 5';

tags : YAG substrate Yttrium Aluminum Garnet Neodymium doped