issue date:2016-3-31 15:35:44 visit frequency:3881
Invented in the sixties of the last century, Nd:YAG has been and continue to be the most widely used laser crystal for solid-state crystal material. Its laser parameters are a good compromise between the strengths and weaknesses of its competition. Nd:YAG crystals are used in all types of solid-state lasers. Compared with others laser crystals, its fluorescence lifetime is twice more than Nd:YVO4 , and thermal conductivity is also better.
Physical Properties
Chemical Formula |
Nd:Y3Al5O12 |
Crystal Structure |
Cubic |
Lattice Constants |
12.01 |
Concentration |
~ 1.2 x 1020 cm-3 |
Melting Point |
1970℃ |
Density |
4.56 g/cm3 |
Mohs Hardness |
8.5 |
Refractive Index |
1.82 |
Thermal Conductivity |
14 W/m /K @20℃, 10.5 W /m /K @100℃ |
Thermal Expansion Coefficient |
7.8 x 10-6/K [111], 0 - 250℃ |
Optical Properties
Pump Wavelength |
807.5nm |
Lasing Wavelengths |
1064nm |
Photon Energy |
1.86x10-19J@1064nm |
Stimulated Emission Cross-Section |
2.8x10-19 cm2 |
Radiative Lifetime |
550us |
Spontaneous Fluorescence |
230us |
Loss Coefficient |
0.003cm-1@ 1064 nm |
Absorption band at pump wavelength |
1nm |
Linewidth |
0.6nm |
Polarized Emission |
Unpolarized |
Thermal Birefringence |
High |
Specifications
Nd Dopant Level |
0.5-1.1 atm% |
Orientation |
<111> crystalline direction (±0.5deg) |
Dimension Tolerances |
Diameter: ±0.05mm |
Length: ±0.5mm |
|
Wavefront Distortion |
λ/8@633nm |
Surface Flatness |
λ/10@633nm |
Parallelism |
<10 arc seconds |
Perpendicularity |
<5 arc minutes |
Surface Quality |
10/5 Scratch and Dig |
Clear Aperture |
>90% |
Chamfer |
<0.1mmx45° |
AR Coating |
Reflectivity R<0.25%@1064 nm per surface |
HR Coating |
Standard R>99.8%@1064nm and R<5%@808nm, Other coatings are available per your request |
Extinction Ratio |
Rods with
diameter from 3 mm to 6.35 mm and with length to 100 mm: >30dB |
Part No. |
Diameter(mm) |
Length(mm) |
Doping(%) |
End Wedge (Deg) |
Coating |
YAG003-65 |
3.0 |
65.0 |
0.6 |
0/0 |
AR/AR@1064nm |
YAG003-78 |
3.0 |
78.0 |
0.6 |
0/0 |
AR/AR@1064nm |
YAG102-25 |
2.0 |
25.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG103-50 |
3.0 |
50.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG103-65 |
3.0 |
65.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG104-50 |
4.0 |
50.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG104-120 |
4.0 |
120.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG105-85 |
5.0 |
85.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG106-120 |
6.0 |
120.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG107-120 |
7.0 |
120.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG107-155 |
7.0 |
155.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG107-145 |
7.0 |
145.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG107-165 |
7.0 |
165.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG107-185 |
7.0 |
185.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG108-100 |
8.0 |
100.0 |
1.1 |
0/0 |
AR/AR@1064nm |
YAG108-145 |
8.0 |
145.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG108-155 |
8.0 |
155.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG108-165 |
8.0 |
165.0 |
1.0 |
0/0 |
AR/AR@1064nm |
YAG108-185 |
8.0 |
185.0 |
1.0 |
0/0 |
AR/AR@1064nm |
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