Neodymium doped Yttrium Aluminum Perovskite

Material
Nd:YAP

 

Neodymium doped Yttrium Aluminum Perovskite (Nd:YAP or YAlO3:Nd3+) is a well-known laser crystal for high output power resonators and is especially suitable for lasers with electro-optic cells or harmonic generators for its polarized output. The 1340nm emission wavelength of Nd:YAP is more advantageous for application in laser medicine than 1319nm emission wavelength of Nd:YAG. The 1340nm emission wavelength of Nd:YAP has higher absorption in water and bodily fluids in comparison with the 1319nm emission wavelength of Nd:YAG. Taking into account the polarized output beam, Nd:YAP can be advantageously utilized in lasers with electro optic cells or harmonic generators.

Properties
Optical properties
Lasing wavelength in nm
930

1079

1340

Refractive index @ 1064 nm
na = 1,929

nb = 1,943

nc = 1,952

dN/dT in 1/K
na = 9,7 ·10-6

nc = 14,5·10-6

Physical properties
Density in g/cm3
5,35
Melting point in °C
1870
Crystal structure
orthorhombic
Specific heat capacity, J/(kg/K)
400
Thermal conductivity in W/(cm · K)
0,11
Thermal expansion in 1/K
9,5 ·10-6 (a-axis)

4,3 ·10-6 (b-axis)

10,8 ·10-6 (c-axis)

Mohs hardness
8,5
Lattice constant in Å
a = 5,176

b = 5,307

c = 7,355

Fluorescence lifetime in ms
170