Nd:YAG crystal is the most widely used laser crystal on solid-state lasers. Sinoceramics is able to supply the quality of Nd:YAG rods with high optical homogeneity, consistent performance, high processing accuracy and on time delivery.



Basic Properties (1.0 atm% Nd doped)

Chemical Formula:


Crystal Structure:


Lattice Constants:

12.01 A
Concentration: ~1.2×1020cm-3
Melting Point: 1970°C
Density: 4.56 g/cm3
Mohs Hardness 8.5
Refractive Index 1.82 @ 1.64nm
Thermal Expansion Coefficient 7.8×10-6/K[111],0 -250°C
Thermal Conductivity 14W/m /K @ 20°C, 10.5W/m /K @ 100°C
Lasing Wavelength 1064nm
Stimulated Emission Cross Section 2.8×10-19cm-2
Relaxation Time of Terminal Lasing Level 30ns
Radiative Lifetime 550ms
Spontaneous Fluorescence 230ms
Loss Coefficient 0.003 cm-1 @ 1064nm
Effective Emission Cross Section 2.8×10-19cm2
Pump Wavelength 807.5nm
Absorption Band at Pump Wavelength 1nm
Line Width 0.6nm
Polarized Emission Unpolarized



Standard Products Specification

Dopant Concentration (atomic %):

0.9% – 1.1%


<111> crystalline direction

Wavefront Distortion:

1/8 per inch @ 633nm
Extinction Ratio : > 28dB
Dimension Tolerance: ± 0.05mm for diameter, ± 0.2mm for length
Parallelism: < 10 arc seconds
Perpendicularity: < 5 arc minutes
Surface Quality: 10-5 scratch and dig
Surface Flatness: < λ /10 @ 633 nm
AR Coating: R < 0.1% @ 1064nm
Damage Threshold: > 500MW/cm2 @ 1064nm, 10ns, 10Hz