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Company Name : Syron Industrial Co., Ltd.
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Nd:YAG crystal

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Nd:YAG Nd:YVO4 Cr:YAG Er:YAG Nd:YLF

Neodymium Doped Yttrium Aluminum Garnet (Nd:YAG)

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

1. Basic Properties (1.0 atm% Nd doped)

Chemical Formula	Nd:Y3Al5O12
Crystal Structure	Cubic
Lattice Constants	12.01Å
Concentration	~ 1.2 x 1020cm-1
Melting Point	1970oC
Density	4.56 g/cm3
Mohs Hardness	8.5
Refractive Index	1.82 at 1064nm
Thermal Expansion Coefficient	7.8 x 10-6 /K {111}, 0 - 250 oC
Thermal Conductivity	14 W/m/K at 20 oC; 10.5 W/m/K@100 oC
Lasing Wavelength	1064 nm
Stimulated Emission Cross Section	2.8 x 10-19cm-2
Relaxation Time of Terminal Lasing Level	30 ns
Radiative Lifetime	550 ms
Spontaneous Fluorescence	230 ms
Loss Coefficient	0.003 cm-1 at 1064 nm
Effective Emission Cross Section	2.8 x 10-19cm2
Pump Wavelength	807.5 nm
Absorption band at pump wavelength	1 mm
Line width	0.6 mm
Polarized Emission	Unpolarized

2. Standard Products specification

Dopant Concentration (atomic %): 0.6%~ 1.1%Orientation: <111> crystalline directionWavefront distortion: l/8 per inch at 633 nmExtinction Ratio :>28 dBDimension Tolerance: + 0.05mm for diameter, ± 0.2mm for lengthParallelism: < 10 arc secondsPerpendicularity: < 5 arc minutesSurface Quality: 10-5 scratch and digSurface Flatness: < l /10 at 633nmAR Coating: R< 0.1 % at 1064nmDamage Threshold: > 500MW/cm2 at 1064nm, 10ns, 10Hz

Nd:YAG crystal