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Advanced Solid State Lasers
Boston, Massachusetts United States
January 31, 1999
Poster Session IV (WB)

Energy transfer processes on Pr,Yb-doped crystals

S. Kück, K. Sebald, A. Diening, E. Heumann, E. Mix, and G. Huber


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The spectroscopic properties of Pr;Yb:YLiF4 and Pr,Yb:YAlO3 are presented. Whereas Pr;Yb:YLiF4 exhibits an avalanche-type excitation mechanism under infrared pumping, no such behavior is observed for Pr,Yb:YAlO3. A time dependent rate equation model was developed to describe these behaviors. The absence of an avalanche-type excitation mechanism in Pr,Yb:YAlO3 is mainly caused by a better spectral overlap between the excited state absorption in the Pr and the ground state absorption of Yb, as well as by higher transfer rates between Yb and Pr and within the Pr in this material.

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.3380) Materials : Laser materials
(260.2160) Physical optics : Energy transfer
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

S. Kück, K. Sebald, A. Diening, E. Heumann, E. Mix, and G. Huber, "Energy transfer processes on Pr,Yb-doped crystals," in Advanced Solid State Lasers, M. Fejer, H. Injeyan, and U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics (Optical Society of America, 1999), paper WB14.

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