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Nd-doped YAG substrate

Nd-doped YAG substrate

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.cm 3 @0-20 ℃

Modulus of elasticity

310GPa

Young's modulus

3.17 x 10 4 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 ℃

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';

 

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
 
 
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