Nd:YAP

Nd:YAP
Neodymium doped yttrium aluminium perovskite

Technical parameters

Material properties 
Host Yttrium aluminium perovskite (YAlO3)
Dopant Nd3+
Crystal structure orthorhombic - Pbnm
Unit cell dimensions (Pbnm notation) a0= 0.518 nm
b0= 0.531 nm
c0= 0.736 nm
Refractive index at 1064 nm 1.914 (na)
1.925 (nb)
1.940 (nc)
Thermal expansion coefficient ||a: 9.5 x 10-6 / K
||b: 4.3 x 10-6 / K
||c: 10.8 x 10-6/ K
Thermal Conductivity 11 W/m K
Density 5.35 g/cm3
Hardness by Mohs 8.5
Fluorescent lifetime (1% Nd) 170 µs
Linear dispersion δn/δT [10-6K-1] 9.7 (na)
Laser wavelengths 4F3/24I9/2 930 nm
4F3/24I11/2 1079 nm
4F3/24I13/2 1340 nm
4F3/24I13/2 1432 nm

 

Emission cross sections of Nd:YAP in dependence on its crystallographic orientation.
(Ref. A. A. Kaminskii, Laser Crystals, New York: Springer Verlag 1981).

Wavelength [nm] Emission cross section [10-19 cm2]
a-cut b-cut c-cut
1079 2.05 1.76 1.38
1340 1.13 0.97 0.78
1432   0.34  

Graphs