From optical spectroscopy to a concentration quenching model and a theoretical approach to laser optimization for Yb3+-doped YLiF4 crystals

被引：18

作者：

Boulon, G ^{[1
]}

Guyot, Y ^{[1
]}

Ito, M ^{[1
]}

Bensalah, A ^{[1
]}

Goutaudier, C ^{[1
]}

Panczer, G ^{[1
]}

Gâcon, JC ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, UMR 5620, F-69622 Villeurbanne, France

来源：

MOLECULAR PHYSICS | 2004年 / 102卷 / 11-12期

关键词：

D O I：

10.1080/00268970410001728816

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A spectroscopic characterization was carried out to identify crystal-field levels for magnetic-dipole transitions of Yb3+ ions located in the Y3+ dodecahedral S-4 crystallographic site in YLiF4 (YLF) crystals which were grown either by the Czochralski technique or by the laser heated pedestal growth (LHPG) technique. The concentration dependence of the measured decay time of the F-2(5/2) excited level of Yb3+ was analysed in order to understand relevant concentration quenching mechanisms. Under Yb3+ ion infrared pumping, self-trapping and up-conversion non-radiative energy transfer to trace rare-earth impurities (Er3+, Tm3+) has been observed over the visible region and interpreted by a limited-diffusion process within the Yb3+ doping ion subsystem to the impurities. The principal parameters useful for a theoretical approach for potential laser applications of Yb3+-doped YLiF4 crystals have also been given.

引用

页码：1119 / 1132

页数：14

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