Nd: YAG is the earliest and most famous laser crystal. Due to its superior basic performance, Nd: YAG is still commonly used in near-far infrared solid-state lasers and their frequency doubling and third harmonic applications.
Advantages of Nd: YAG
Basic attributes:
High gain
Low laser threshold
High power
Less absorption of 1064nm light wave
Good thermal conductivity and thermal shock characteristics
Good optical properties
Suitable for various working modes (continuous, pulse, Q-switch, mode-locked)
Chemical formula Y3Al5O12
Crystal structure Cubic
Dot matrix parameter 12.01 Å
Melting point 1970 ° C
Density 4.5g/cm3
Reflectivity 1.82
Thermal expansion coefficient 7.8x10-6/K<111>, 0-250 oC
Thermal conductivity 14W/m/K, 20 ° C
10.5W/m/K, 100 ° C
Mohs hardness 8.5
Stimulated emission cross-section 2.8x10-19 cm-2
Loss coefficient 0.003 cm-1 @ 1064nm
Row width 0.6 nm
Radiation lifetime 550 ms
Nd: YAG is the earliest and most famous laser crystal. Due to its superior basic performance, Nd: YAG is still commonly used in near-far infrared solid-state lasers and their frequency doubling and third harmonic applications.
Advantages of Nd: YAG
Basic attributes:
High gain
Low laser threshold
High power
Less absorption of 1064nm light wave
Good thermal conductivity and thermal shock characteristics
Good optical properties
Suitable for various working modes (continuous, pulse, Q-switch, mode-locked)
Chemical formula Y3Al5O12
Crystal structure Cubic
Dot matrix parameter 12.01 Å
Melting point 1970 ° C
Density 4.5g/cm3
Reflectivity 1.82
Thermal expansion coefficient 7.8x10-6/K<111>, 0-250 oC
Thermal conductivity 14W/m/K, 20 ° C
10.5W/m/K, 100 ° C
Mohs hardness 8.5
Stimulated emission cross-section 2.8x10-19 cm-2
Loss coefficient 0.003 cm-1 @ 1064nm
Row width 0.6 nm
Radiation lifetime 550 ms