Upconversion fluorescence and lasing in Pr,Yb-doped host lattices

K. Sebald; S. Kueck; E. Heumann; T. Sandrock; R. Gross; P. Moebert; G. Huber

Upconversion fluorescence and lasing in Pr,Yb-doped host lattices

K. Sebald, S. Kueck, E. Heumann, T. Sandrock, R. Gross, P. Moebert, G. Huber

Universität Hamburg

Research output: Contribution to conference › Paper › peer-review

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.

Original language	English
Pages	222
Number of pages	1
State	Published - 1998
Externally published	Yes
Event	Proceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98 - Glasgow, Scotland Duration: 14 Sep 1998 → 18 Sep 1998

Conference

Conference	Proceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98
City	Glasgow, Scotland
Period	14/09/98 → 18/09/98

Cite this

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title = "Upconversion fluorescence and lasing in Pr,Yb-doped host lattices",

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.",

author = "K. Sebald and S. Kueck and E. Heumann and T. Sandrock and R. Gross and P. Moebert and G. Huber",

year = "1998",

language = "English",

pages = "222",

note = "Proceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98 ; Conference date: 14-09-1998 Through 18-09-1998",

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TY - CONF

T1 - Upconversion fluorescence and lasing in Pr,Yb-doped host lattices

AU - Sebald, K.

AU - Kueck, S.

AU - Heumann, E.

AU - Sandrock, T.

AU - Gross, R.

AU - Moebert, P.

AU - Huber, G.

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

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M3 - Paper

AN - SCOPUS:0031635472

SP - 222

T2 - Proceedings of the 1998 International Symposium on Information Theory, CLEO/EUROPE'98

Y2 - 14 September 1998 through 18 September 1998

ER -

Upconversion fluorescence and lasing in Pr,Yb-doped host lattices

Abstract

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