Laser crystal

Nd-doped yttrium orthovanadate (Nd:YVO4)Nd-doped yttrium aluminum garnet (Nd:YAG)titanium-doped sapphire (Ti:Al2O3)

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)