Abstract

In comparison to Ti³⁺ doped sapphire the absorption and emission spectra of Ti³⁺:YAlO₃ are shifted to shorter wavelengths. The fluorescence lifetime at roomtemperature has been measured to be 11.4 μs. This value is a factor of three longer than in sapphire and may be advantageous in case of flashlamp pumping. But so far no laser action has been achieved in our laboratory, although Kvapil et al. have published some hints at stimulated emission. However, the maximum efficiency of 3.5·10⁻⁴ under laser pumping is extremly small [1].

© 1989 Optical Society of America