Abstract
YAP doped with various concentrations of Pr and Yb have been investigated for a similar upconversion mechanism. Spectroscopic measurements were carried out on Czochralski-grown crystals, with melt compositions Pr(0.5%),Yb(5%):YAP, Pr(0.75%),Yb(5%):YAP and Pr(0.8%),Yb(5%):YAP. In the experiments, the crystals were pumped by a Ti:sapphire at wavelengths in the interval from 800nm to 890nm. In contrast to fluoride crystals, in YAP only a very weak whitish fluorescence was observed at an excitation wavelength of 850nm and no laser action could be achieved in YAP. This behaviour is explained by measuring the radiative lifetimes of the 3P0 manifold of various Pr,Yb-doped YLF and YAP crystals.
Originalsprache | Englisch |
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Seiten | 222 |
Seitenumfang | 1 |
Publikationsstatus | Veröffentlicht - 1998 |
Extern publiziert | Ja |
Veranstaltung | Proceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98 - Glasgow, Scotland Dauer: 14 Sept. 1998 → 18 Sept. 1998 |
Konferenz
Konferenz | Proceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98 |
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Ort | Glasgow, Scotland |
Zeitraum | 14/09/98 → 18/09/98 |