Optical and spectral properties | |
---|---|
Refractive index @750 nm | 1,737 (∥ a-Achse) 1,742 (∥ b-Achse) 1,735 (∥c-Achse) |
dN/dT in 1/K | 8·10-6 |
Physical properties | |
---|---|
Density in g/cm3 | 3,7 |
Melting point in °C | 1870 |
Crystal structure | rhombic |
Thermal conductivity in W/(m · K) | 23
|
Thermal expansion in 1/K | 5,9·10-6 (∥ a-axis) 6,1·10-6(∥ b-Achse) 6,7·10-6(∥ c-axis) |
Vickers hardness in kg/mm2 | 2000 |
Lattice constant in Å | a = 5,47 b= 9,39 c=4,43 |
Fluorescence lifetime in µs | 260 |
Dopant concentration in at.% | 0,03 ‐ 1,0 |