Nd-doped yttrium aluminum garnet (Nd:YAG) crystal

Chemical Formula:
Ti3+:Al2O3
Nd:Y3Al5O12
Nd:YVO4

Crystal Structure:
Hexagonal
Cubic
Zircon Tetragonal,Space Group D4h

Melting Point:
2050℃
1970℃

Density:
3.98g/cm3
4.56g/cm3
4.22g/cm3

Mohs Hardness:
9
8.5
5

Thermal Conductivity Coefficient:
0.11 cal/(℃*sec*cm)

14W/m/K@20℃
10.5 W/m/K@100℃

‖C:5.23W/m/k
ˆC:5 .10W/m/k

Thermal Expansion Coefficient:
7.8*10-6/k [111],0-250℃
Aa=4.43*10-6/k
Ac=11.37*10-6/k

Lasing Wavelength:
660-1050nm(795nm)
1064nm
914nm,1064nm,1342nm

Absorption Range:
400-600nm
Lamp pump
808nm

Lattice Constants:
a=4.748,c=12.957
12.01
a=b=7.12,c=6.29

Fluorescence Lifetime:
3.2 m sec(T=300K)
230msec
90msec(about 50ms for 2 atm%Nd doped)@808nm

Absorption Coefficient:
1.0-7.5cm-1@490nm
7.1cm-1
31.4cm-1@808nm

Refractive Index:
1.76@800nm
1.82@1064nm
No=1.9573,ne=2.1652@1064nm

Polarized Emission
Unpolarized
Parallel to Optic Axis(C-axis)

Crystal type : Nd-doped yttrium orthovanadate (Nd:YVO4), Nd-doped yttrium aluminum garnet (Nd:YAG), titanium-doped sapphire (Ti:Al2O3)
Use : laser