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Nd:YAG

Nd:YAG(Neodymium-doped Yttrium Aluminum Garnet)

Nd:YAG(Neodymium-doped yttrium aluminum garnet) laser crystal has many excellent basic properties like good optical homogeneity and mechanical property, high chemical stability and good thermal conductivity. It’s widely used in industry, medical, military, and scientific research field. For applications requiring high power and energy, Q-switched and mode-locked ultrashort pulse lasers, it’s mostly used material.

Description

Specifications

Dopant Concentration Nd: 0.3~1.2 atm%
Dimension D≤80*L≤200
Dimensional Tolerances Diameter: ± 0.1mm
Length: ± 0.2mm
Surface Quality (Scratch/Dig) 10/5
Wavefront Distortion λ/8 @633 nm
Flatness  λ/10 @633 nm
Parallelism 10 arc sec
Perpendicularity ≦ 5 arc min
HR Coating R > 99.8% @1064 nm, R < 5% @808 nm
AR Coating ≤ 0.25% (@1064nm)
Damage Threshold >500 MW/cm2 @1064 nm, 10 ns, 10 Hz (AR-coated)

*The parameters just for general reference. For specific requirements, please contact our sales. 

 

Basic Properties

Formula Y3Al5O12
Crystal Structure Cubic
Lattice Parameter 12.01 Å
Density 4.5 g/cm3
Melting Point 1970℃
Reflective Index 1.82
Mohs Hardness 8.5 Mohs
Thermal Expansion Coefficient 7.8 × 10-6 /K <111>, 0 – 250℃
Thermal Conductivity 14 W/m/K, 20℃
10.5 W/m/K, 100℃
Stimulated Emission Cross-section 2.8 × 10-19 cm-2
Linewidth 0.6 nm
Loss Coefficient 0.003 cm-1 @1064 nm